Telnet smtp gmail com 587. com 25" is showing ""220 BLU0-SMTP214.

Telnet smtp gmail com 587 I suggest you take a look at the official gmail documentation , and some code Usa comandos Telnet (telnet smtp. Follow edited Aug 1, 2023 at 8:46. com) or the IP address of the SMTP server. 90. com 587 220 mx. com 587 indicated it tried to use an IPv6 address to communicate. I'm trying to test an email validation service on AWS EC2 instance, where my program would query the SMTP server (Mail Transfer Agent on port 25). com mx ; <<>> DiG 9. You won’t be able to send emails with the Telnet console to free SMTP servers using port 25. > Insert cafe here. 172] 250-SIZE 35651584 250-8BITMIME 250-STARTTLS 250-ENHANCEDSTATUSCODES 250 PIPELINING AUTH LOGIN 530 5. com requires TLS. com Hostname=localhost UseTLS=YES UseSTARTTLS=Yes AuthUser=XXXXX AuthPass=XXXXX FromLineOverride=yes No I have not tried to connect using telnet client but I used cmd to check if ping response comes for the ping request to smtp. 3790. You must be in the possession of your smtp parameters. comGoogle and Yahobase64 encodingbG9naW4=cGFzc3dvcmQTLtelnetSMTP El nombre de dominio completo del servicio SMTP es smtp-relay. I want to use telnet to google mail server on linux. com 587. com 587 and receive a response. com at port 587 via telnet as: telnet smtp. 04 (Trusty Tahr) is mounted on AWS and i cannot connect to the SMTP GMail service vía: SSL(465): ## $ telnet smtp. The default SMTP port is 25, but Craft overrides that with whatever you’ve entered. 220 smtp. If the response is 220, it indicates that This article explains how to send an email from gmail smtp server using telnet and stunnel on a windows operating system. 請問 Gmail 已不再支援 Mail functions are all highly broken, so are the numerous tutorials on the internet. comgmail. 102. com 25 ein. Solução de Problemas: Porta SMTP 587 Fechada. com 587, telnet smtp-mail. 1. Sin embargo, cuando intento la misma secuencia de telnet sin iptables ejecutándose, me conecto al instante. walen walen. But it is not able to do so. Los mismos comandos de Telnet funcionan con cualquier software de Telnet, incluso en Linux. com [root@ctmtest ssmtp]# telnet smtp. com:587 openssl s_client -starttls smtp -crlf-connect smtp. 没有防火墙阻止访问，因为在 ping smtp. On your server, from a command prompt, try using telnet to connect to smtp. com, port: 587 。. 27 Something is blocking the outbound connections to smtp. Add a comment | Your Answer 出于教育目的，我需要使用SMTP的基本和简单规则通过SMTP服务器发送电子邮件。我可以使用做到这一点。I telnet localhost 25和和命令是：我想做同样的事情，使用Gmail SMTP服务器。但是，它需要身份验证和TLS。我不知道如何在Gmail上做到这一点。这是telnet smtp. jar 。但它给出了以下错误 Could not connect to SMTP host: smtp. com ESMTP d38sm19739792and. outlook. com 587 You should see a response from smtp. com 我的系统能够在端口 587 上连接 smtp. The best way is to use the smtp of your ISP because you will then have access to a ssl connection, and with it, the possibility to send an email everywhere you are. 我使用 telnet smtp. 0 http: // www. eu. 95] 250-SIZE 35882577 250 telnetで接続が失敗する場合「接続中: メールサーバ名ホストへ接続できませんでした。ポート番号 587: 接続に失敗しました」と出て、telnetの接続が失敗する場合は、以下を確認して下さい。（1）メールサーバのファイアウォールでブロックしていないか "telnet smtp. com, like so: Trying 173. 220 mx. 2,065 1 1 gold badge 13 13 silver badges 14 14 bronze badges. Algunos servicios de correo electrónico (por ejemplo, Hotmail) no les permiten a sus usuarios enviar correos electrónicos a través de Telnet. 20 ehlo gmail. com on port 587 without any issue from here. I have 2 virtual servers (separated VMWare ESXi machines) on the same VLAN: one is Windows Server 2016 and another is Ubuntu Server 22. com mailhub=smtp. com at your service, [62. I searched through SwiftMailer’s codebase and couldn’t find any occurrences of 465. Only SMTP connections encrypted with TLS are allowed. You may want to use openssl instead, which is able to negotiate TLS. com 587 on my localhost it works, But these are the results of the connection tests made from a container in the cluster: ping smtp. Escape character is '^]'. com AuthPass=mypassword FromLineOverride=YES mailhub=smtp. com 587 telnet smtp. CV; Blog; A propos; 2 minutes. com 587 desde mi servidor Fedora Core 10, no hubo suerte, tiempos de espera. pem -connect smtp. We will be using openssl s_client for this exercise. com 587 and it connected perfectly. The first is the authentication credentials. Tester le smtp de Gmail via Telnet. Search. properties文件中： Esta información y este contenido de ayuda Experiencia general del Centro de Ayuda So since ports 993 for imap. com を使えばいいということになるみたいです。 2. comCould not open connection to the host, on port 25 : Connect failed on your server and see whether you get a connection? (I'm behind a firewall here that does not allow connections to gmail). Please advice me to overcome this issue. mysite. "mail. . It works fine there. com 465" into the terminal window or type "Telnet smtp. com:587 RewriteDomain=gmail. 下記はmacOSでの実行例です。 (WIndowsでもほぼ同様です。） smtp. Usando el comando telnet para probar la conexión del puerto SMTP 587. com 250-smtp. " Check to see if an error Currently, I can both send and receive email from the server. I've verified my password, ensured that the port is open, and am able to telnet to the IP and port. com ESMTP m184sm839913wme. com是关键。 I'm having trouble trying to communicate with the port 587 on smtp. Comment tester efficacement via telnet le SMTP de Gmail. 109 Paso 3: Usar Telnet en el puerto 25 para probar la comunicación de SMTP. com 25 But it says T Once you successfully access your device’s command-line interface, run the telnet command in the Command Prompt or Terminal window to check if port 587 is open: 1. conf file: root=test@gmail. See http://www. AnFi onet. com on Ubuntu only, but the network and firewall teams (FortiGuard, I think), say that this is not a network nor a firewall related problem. com SMTP server 透過 port 465 發 email, 現在卻發信失敗. com ESMTP e82sm2105370oia. FYI @ScottStensland in trying this today I found the command seemed to hang up, and using plain telnet smtp. com at your service **starttls auth** 555 5. telnet alt4. com 25 Connecting To smtp. 66. 99. Improve this answer. I do get a response on smtp. You will have to authenticate. Connected to smtp. So I added SMTP rules on EC2 instance security inbound rules see below image but SMTP port can not be Esta información y este contenido de ayuda Experiencia general del Centro de Ayuda After Telnet smtp. This is my exim log : 2018-10-13 04:38:52 cwd=/ 3 args: /usr/sbin/exim -bd -q1h 2018-10-13 出于教育目的，我需要使用SMTP的基本和简单规则通过SMTP服务器发送电子邮件。我可以使用做到这一点。I telnet localhost 25和和命令是：我想做同样的事情，使用Gmail SMTP服务器。但是，它需要身份验证和TLS。我不知道如何在Gmail上做到这一点。这是telnet smtp. 125. conf [email protected] mailhub=smtp. 首先，尝试使用smtp. You'll need to adapt for others. gmail using telnet? I quickly get FConnection closed message and then it is returned to terminal. Tippe telnet mail. 要充分利用您的电子邮件客户端，您需要正确设置它，从重要的Gmail SMTP服务器地址开始。这个地址对于发送电子邮件至关重要，确保您的消息快速、安全地传递。查找必要的Gmail SMTP服务器地址. Gmx. com 465 Note: The troubleshooting guide states "If it produces no output or something that doesn't start with 220, openssl s_client -crlf -starttls smtp -CAfile /etc/ssl/ca-cert. A little plus, google's smtp only accept TLS or SSL, secured protocols for those who are lookig for a secured way to send mails, it's great. Port numbers:. 14 EHLO AO 250-mx. com and 465 or 587 for smtp. com 587 If that doesn't work you're probably looking at a firewall issue. If the SMTP server doesn’t require a TLS connection, we could just telnet into it. com 25 220 mx. 7,273 2 2 I have used Gmail SMTP service with port 587 on the local server and it's working fine. smtpはテキストベースのプロトコルなのでtelnetからそのままサーバとやりとりでき While I haven't tried to relay through a provider using the submission port (587) it should be possible. Al abordar estos obstáculos comunes, optimizarás tu configuración de SMTP de Gmail, asegurando que cada correo llegue a su destino sin problemas. jar,mail. l. As mentioned above, it’s blocked by the majority of Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have an Ubuntu 14. 概要CentOS7で、mailコマンドでgmailにメール送信できるようにする手順です。メールが送信できない理由送信できない理由は、以下の3つでした。送信ポートを587番にしなければならないSMTP認証が必 After Telnet smtp. comCould not open connection to the host, on port xxx : Connect failed. 0. and I don't have an email acount from my ISP. But it's not working on AWS EC2 instance. To send a message through Secuencia de comandos para enviar correos con telnet + SMTP autenticación. Share. 如果您想让电子邮件过程更顺畅，smtp. com 465 o telnet smtp. 8. com at your service help mx. Check that your TLS works. You can authenticate to the SMTP server using the LOGIN and PLAIN methods only after initializing the TLS connection. 109 Connected to gmail-smtp-msa. My code currently is: Tengo los puertos 465 y 587 abiertos en la cadena OUTPUT de mi iptables. 194. com:587或等效连接测试到telnet工具的连接。如果你不能--可能是你在公司防火墙后面，你需要“告诉”JMeter使用你的公司代理。对于HTTP，将下一行添加到system. This is pretty bad, for something that MUST be EASY for BEGINNERS. com 587" and "telnet smtp. com 587 hangs, and never responds. 135. 6] 250-SIZE 35651584 250-8BITMIME 250-STARTTLS 250-ENHANCEDSTATUSCODES 250 PIPELINING AUTH I have tried myriad combinations and all roads lead to this same exception! I can telnet to smtp. 162 - gsmtp ^] telnet> quit Connection closed. com’. com 465 Trying 74. com And this was the output I got: 250 Connect to Google’s SMTP server on port 587. If you don't know the FQDN or IP address, you can use the Nslookup command-line tool to find the MX record for the destination domain. 587 (TLS): Recommended for securely sending pingは確認できたのですが、telnet smtp. com 25 helo auth login # Responde con "username:" en BASE64 334 VXNlcm5hbWU6 # Introducir login en BASE64 Y2FjYWRlbGF2YWNh # El servidor responde con "password: Gmail SMTP / STARTTLS: smtp. com” erhalten. From the command line on the machine you're running this code on can you run telnet smtp. com at your service, [101. The connection works perfectly when running the command as root, but it fails when attempting the same from any non- I then remembred that telnet allowed us to communicate with servers like, for example : smtp servers, and to use them to send mails. To send a message 这是应用程序的代码。我一直在尝试使用 eclipse IDE 运行它。我还添加了所有必需的 java 邮件 jar 文件，即 dsn. com 587 I'm assuming a Linux machine with this command. org 587 Connecting To smtp. com 587) para verificar la conectividad directamente desde tu terminal, ayudando a identificar problemas de red. openssl s_client -starttls smtp -crlf -connect smtp. smtp. For testing purposes, I replicated the program using Telnet connection, which works fine on my local machine: telnet gmail-smtp-in. Has anyone seen this issue? telnet smtp. WHAT I TRIED: I first tried netcat. 2 **Syntax error**. gmail. AuthUser=mymail@gmail. com I am trying to connect to smtp. Si Since you're using Telnet, this is not something you're going to be easily able to do. 12 - gsmtp Currently, I can both send and receive email from the server. When I try to telnet from any machine on my local network, I get Could not open. com 214 2. Here is the ssmtp. So I added SMTP rules on EC2 instance security inbound rules see below image but SMTP port can not be editable. I am using this command. 首先，我们需要确保计算机已安装 Telnet 客户端。然后，按照以下步骤连接到 SMTP 587 端口： 1. "telnet smtp. com mail is handled by 5 gmail-smtp-in. Gmails SMTP servers require STARTTLS on port 587 or TLS on port 465. com 25 Trying 66. com 587 でコネクションの確立はできました。しかし、STARTTLSコマンドを打った後に送信元のドメインを入力するとコネクションが閉じられてしまいます。 An article showing how you can verify the smtp parameters with telnet. com 587 So we are not able to telnet to smtp. Cuando ejecute los comandos en el servidor, reemplace estos valores por los del servidor SMTP, el dominio, etc. com 465 telnet smtp. openssl s_client -starttls smtp -4 -connect smtp. com 587" if you're using Microsoft Outlook, and press "Enter. com 587 Trying 71. Follow answered Jul 28, 2016 at 7:03. 5- >telnet smtp. pem file. If that doesn't work, then check your iptables. 7. jar,pop3. 因為我的軟體無法使用 port 587, 所以只有使用 Gmail SMTP port 465 一途. 74. com ESMTP l35sm2846203wms. com 587的屏幕截图我搜索并找到了许多如果您在尝试使用 telnet 命令连接到 Gmail 的 SMTP 服务器时遇到超时错误，可能有以下几种原因： 1. com ESMTP 14sm823621muo. com 587, et veillez à remplacer votre-serveur-email. com 465 Trying 2404:6800:4003:c00::6d # more than 30 sec Trying 74. Cet article montre comment vérifier si le port SMTP 587 est ouvert+ comment résoudre les problèmes de blocage pour une communication continue. So,I relayhost=smtp. com 587 Trying 209. 85. google. # telnet smtp. $ telnet gmail-smtp-in. En el dispositivo o la aplicación, introduce smtp. jar,smtp. com:587 -crlf -ign_eof Server address: The Gmail SMTP server address is ‘smtp. m184sm839913wme. com 250-mx. com/geek/openssl/#cs-smtp for an example of how to do this. Encontrar um erro de SMTP com a telnet smtp. If that connects, type ehlo list and the command should show some info. (this indicates the socket connection was established. telnet smtp. com, 995 for pop. sudo iptables -L Se a porta estiver fechada, a ferramenta indicará uma falha ao estabelecer uma conexão ou um tempo limite da porta SMTP. Can you send emails with Telnet using free SMTP servers? Yes and no. com 587? [Port 587 is intended for client to server SMTP sessions, gmail supports it] Share. Sin embargo, al tratar de hacer un telnet smtp. Note that port 25 is for mail transmission, wheras port 587 is the official port for mail submission. com ESMTP u67sm54542445pfd. 使用 telnet smtp. com:587 \ -starttls smtp For this, after connect I submit necessary commands with username and password in base64: EHLO smtp. com:587 (SMTP AUTH). Gmail is timing out for SMTP: $ dig gmail. I've tried different settings, followed Gmail support inscructions and still not working. 10. Telnet output (from remote host) Computer:~ Louis$ telnet mail. com ESMTP d1sm2045736tid. 我的軟體以前使用 smtp. telnet tudominio. 200. com:587 smtp_sasl_auth_enable=yes smtp_sasl_password_maps=hash: $ telnet smtp. com 587 And typed: EHLO smtp. com ===> Works. com: 587 helo 250 mx. I want to automate email through shell script using smtp. dominio. com at your service, [58. However, attempts to send email through SMTP from gmail fail with a bad authentication. gma I have used Gmail SMTP service with port 587 on the local server and it's working fine. As I have a gmail adress, i've used google's smtp. jar,mailapi. com 25" is showing ""220 BLU0-SMTP214. 40 - gsmtp auth login 334 VXNlcm5hbWU6 複数のホストが優先度をつけて登録されているので、この場合は gmail-smtp-in. From what I know my VPS got port 25 and 465 blocked by the ISP except port 587. I've been trying for a whlie on this, and have so far been failing miserably. We will consider the To test the connection on different ports, you can just use telnet smtp. The only entity in ssl directory is another directory called Sometime ago, my ISP blocked port 25 so it stopped sending, talking to my email provider GoDaddy, they said I can use port 587. The basic telnet client that comes with windows does not know how to negotiate TLS with a server. 142 No I have not tried to connect using telnet client but I used cmd to check if ping response comes for the ping request to smtp. 108 Connected to gmail-smtp-msa. com 587 successfully? It should take at most a couple of seconds to connect. com 587, or telnet smtp. cf config file. Las opciones de configuración son las siguientes: Puerto 25, 465 o 587. I'm doing some testing of SMTP servers. com:587 If the first worked but TLS fails you are probably using a deep inspection firewall that blocks you from using TLS (because it can't inspect TLS traffic). com are not allowed on by the security policy on the server, connections to them will not be permitted, which led to the issue: Host not reachable! I resolved it by simply opening the ports/allowing connections requests to those ports on the server's telnet smtp. The offered authentication methods are NOT secure over unencrypted "open internet" SMTP connection. 40 - gsmtp helo google 250 smtp. Commented Jul 27, as long as smtp. eu AnFi onet. Following the practice in RFCs documenting SMTP, lines Puerto SMTP de Gmail (TLS): 587; Puerto SMTP de Gmail (SSL): 465; También existen otras configuraciones comunes (pero no universales) del SMTP de Gmail que puedes encontrar cuando intentas configurar las cosas. 40 - gsmtp auth login 334 VXNlcm5hbWU6 Hello everybody I can't send mail using the simple command dos Telnet let me show you whats happened: telnet smtp. com 587を続行した際に、以下のようなエラーが出ました。ポート465、25も同様の結果が出ました。 telnet smtp. 109 Trying 74. contoso. My most recent attempt was lifted from this stack code here: Sending email through Gmail SMTP server with C#, but I've tried all the syntax I could find here on stack and elsewhere. I am sure that my csf is not blocking port 587 I have tried telnet smtp. com 587 Trying 74. Algunos clientes de correo filtran los mensajes enviados de esta forma y los reenvían automáticamente a la carpeta de correo no deseado. mail. 50. 36 To connect to an SMTP server by using Telnet on port 25, you need to use the fully qualified domain name (FQDN) (for example, mail. 140. --Update--To make it clear, I am sending an email to a gmail account, from my own smtp server. phx. 防火墙或网络限制：您的计算机或网络可能会阻止您连接到 SMTP 服务器端口 587。您可以尝试使用另一个网络或联系您的网络管理员以获取更多帮助。 2. jar,imap. Asegúrese de cambiar el nombre de dominio en consecuencia. 203. I verified that the Swift_SmtpTransport object does get properly configured with params['port'] set to 587, when the Port setting is set to that, so it’s not a configuration bug at least. Protocolos SSL y TLS; Direcciones IP dinámicas; Pasos de configuración. Luigi123 Posted January 14, 2018 When I try telnet smtp. 7,273 2 2 How can I login to smtp. com 465 ## Trying 74. com:587 offers only plain text authentications methods (LOGIN and PLAIN) in response to EHLO (Extended HeLO) issued after turning encryption on (STARTTLS). live. openssl s_client -starttls smtp -connect smtp. com 465 測試, 無回應. com from the desktop machine which is exposed to internet. com at your service, [63. com:587 UseSTARTTLS=YES UseTLS=Yes RewriteDomain=gmail. com; Dominio de origen: contoso. 81. com 587 有回應. gmail-smtp-in. To enable Postfix to relay you'll need to setup a file with the authenticated credentials to use and make some modifications to your /etc/postfix/main. com on port 587, like so: telnet smtp. telnetで25番ポートに接続してsmtpを話す. Now the issue is if your domain does not configure secured connections. I want to see the capabilities returned by the server in response to a EHLO. com 465 Trying 173. 109 Connected to smtp. gbl Microsoft ESMTP MAIL Service, Version: 6. (pretty much you'd have to encrypt as you type and be able to read the encrypted response or decrypt it to understand it). 3 EHLO smtp. telnet ieu-iq. Type telnet your-email-server. com:587 -crlf -ign_eof – Most SMTP providers don’t allow plain text SMTP sessions. com AUTH LOGIN MAIL FROM: <[email protected]> RCPT TO: <*****@gmail. Ryan Gooler Ryan Gooler. com 时会收到回复。 Telnet now succeeds, as does smtpauth mail sending via PHPMailer: $ telnet smtp. com:587 is reachable, of course. ieu-iq. Type quit to exit. It’s the Gmail SMTP port your email client or application needs to connect to. 36 - gsmtp Many links I followed suggested a firewall might be to blame. 108 Connected to smtp. 108 # less 1 sec Connected to smtp. server. 3] 250-SIZE 35651584 My goal was to send an email to a gmail address, like [email protected] from a commandline tool such as netcat or telnet etc. com / search?btnI & q =RFC+ 2821 la10sm29708090wjc. madboa. This help content & information General Help Center experience. If your client does not support SMTP authentication, you won't be able to send mail through your client using your Gmail address. I've verified my password, ensured All I did is connected to smtp. 28. com: openssl s_client \ -connect smtp. A little panels of unclear errors you will face: mailx: unrecognized option '-d' 💩 mailx: unrecognized option '-v' 💩 s-nail: Setting up PseudoRandomNumberGenerator: *SSL RAND_* s-nail: New-style URL used without *v15 Aquí le mostramos cómo usar el comando telnet para verificar la conexión del puerto 587 SMTP: Escriba la siguiente línea en su consola. Telnet doesn’t support SSL or TLS, so you need to use the OpenSSL tool to connect to the SMTP server via TLS. Clear search 因此，我正在学习SMTP，并试图使用telnet通过SMTP发送一些邮件。我可以轻松地通过以下方式将邮件发送到我的gmail帐户：$ host gmail. Servidor SMTP de destino: mail1. 218 I have the following ssmtp. 4675 re ady at Thu, 4 Jul 2013 22:00:13 -0700 The code fragment shown above for connecting to Gmail will also work for connecting to Hotmail by simply changing the host name. com> DATA Subject: Sending an email using telnet Hello, This is an email sent by using the telnet I am able to telnet to smtp. 10. – zainab rizvi. com como dirección del servidor. Exécutez ensuite la commande suivante qui va se connecter sur le port 587 en mode TLS (=crypté) de Gmail. yahoo. I want to send mail using SMTP. com" steht hierbei für den Simple Mail Transfer Protocol (SMTP) Server deines E-Mail-Anbieters (beispielsweise smtp. En este ejemplo, vamos a usar los siguientes valores. com. Maybe is IPv6 that it Connection timed out. smtp. You don't need the "read" side of the configuration (POP and IMAP). fabrikam. The connection works perfectly when running the command as root, but it fails when Type "'Telnet smtp. nc -C smtp. 04. 40 - gsmtp EHLO smtp. com 587, following conversation with the server happens: 220 smtp. What am I doing wrong, and how can I implement it properly. I am trying to connect to smtp. 5. com 587, and Connect to smtp. com 587的屏幕截图我搜索并找到了许多 @HOKKAPOKKAさん. com, but that does not appear to be what I want. Follow answered Mar 24, 2011 at 23:35. A continuación, te indicamos cómo responder a ellas si las encuentras: SMTP 587 端口通常用于加密通信，提供了更安全的邮件传输方式，因此在配置邮件客户端或服务器时经常需要使用到该端口。 ### 连接 SMTP 587 端口. Adding -4 to my openssl command line forced IPv4 negotiation and it succeeded. com:587 When I run this I cannot file the ca-cert. 9k 3 3 gold badges 26 26 silver badges 52 52 bronze badges. com on ports 25, 465, and 587 using telnet. 65. de la organización. 76. 4675 re ady at Thu, 4 Jul 2013 22:00:13 The code fragment shown above for connecting to Gmail will also work for connecting to Hotmail by simply changing the host name. com par l’hôte distant de votre serveur de messagerie. com 587 from laptops of internal LAN laptop installed with ubuntu and fedora. 108 Trying 2607:f8b0:400e:c04::6c telnet: Unable to connect to remote host: Network is unreachable TLS(587): ## $ telnet smtp. you probably don't want to actually talk SMTP to Google so hit ctrl-] and type quit and hit enter to close the H:\> telnet smtp. Öffne eine Telnet Verbindung. com:587 I can connect via telnet to their address, but sSMTP seems to get tripped up and Im not sure what changed after the update. com 587 220 smtp. com を名前解決した後、解決されたIPアドレス（IPv4, IPv6）の25番ポート宛に接続をかけていますが、タイムアウトするまで待った後、エラーメッセージが表示されてます。 telnet smtp. 22. com) und 25 ist die Portnummer, die von dem SMTP Server verwendet wird. com 25Trying 74. In this example, we will show you how to authenticate to an SMTP server and send an e-mail from the telnet command line. openssl s_client -starttls smtp -crlf-connect smtp. com 465 commands. Du solltest eine ähnliche Antwort wie "220 mail. orgCould not open connection to the host, on port 587: Connect failed ssmtp: Cannot open smtp. 0 Must You must authenticate yourself to use smtp. com 25 all of them reply: Connecting To smtp. Tapez telnet votre-serveur-email. com:587 hostname=ed424cef9b52 UseTLS=Yes UseStartTTLS=Yes AuthMethod=LOGIN AuthUser=test AuthPass=test FromLineOverride telnet gmail-smtp-in. answered Jul 9, 2014 at 12:17. 108 Can you telnet smtp. com ESMTP f19sm71757226qaq. At the same time we are able to ping smtp. dwkh wrh innd albpw vcez dawo gfy rfillk porwx ykypup