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email:troubleshooting:test-remote-smtp-connection

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email:troubleshooting:test-remote-smtp-connection [2020/05/13 07:34]
Karson N. [Testing with Telnet]
email:troubleshooting:test-remote-smtp-connection [2020/06/11 08:35] (current)
Karson N.
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 From your terminal (shell) window perform the following: From your terminal (shell) window perform the following:
   - Dig for the MX record of the domain the email is being sent to. Eg. user@hotmail.com   - Dig for the MX record of the domain the email is being sent to. Eg. user@hotmail.com
-    * <code>dig MX hotmail.com +short +    * <code> 
-5 mx2.hotmail.com. +  dig MX hotmail.com +short 
-5 mx3.hotmail.com. +  5 mx2.hotmail.com. 
-5 mx4.hotmail.com. +  5 mx3.hotmail.com. 
-5 mx1.hotmail.com.</code>+  5 mx4.hotmail.com. 
 +  5 mx1.hotmail.com. 
 +</code>
   - Any of the listed will work, for this we'll use mx1.hotmail.com. Now, let's attempt the connection via port 25.   - Any of the listed will work, for this we'll use mx1.hotmail.com. Now, let's attempt the connection via port 25.
     * <code>telnet mx1.hotmail.com 25</code>     * <code>telnet mx1.hotmail.com 25</code>
     * The referenced command should respond with something similar to the following if the connection was SUCCESSFUL:     * The referenced command should respond with something similar to the following if the connection was SUCCESSFUL:
-    * <code>Trying 65.54.188.126... +    * <code> 
-Connected to mx1.hotmail.com. +  Trying 65.54.188.126... 
-Escape character is '^]'+  Connected to mx1.hotmail.com. 
-220 BAY004-MC4F30.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at http://privacy.microsoft.com/en-us/anti-spam.mspx. Sun, 1 Feb 2015 08:27:01 -0800</code>+  Escape character is '^]'
 +  220 BAY004-MC4F30.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at http://privacy.microsoft.com/en-us/anti-spam.mspx. Sun, 1 Feb 2015 08:27:01 -0800 
 +</code>
     * If the connection was NOT successful, you'll see something like this:     * If the connection was NOT successful, you'll see something like this:
-    * <code>Trying 65.54.188.126... +    * <code> 
-telnet: Unable to connect to remote host: Connection refused</code>+  Trying 65.54.188.126... 
 +  telnet: Unable to connect to remote host: Connection refused 
 +</code>
  
 \\ \\
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 It's not my preferred method, however you can always try external services for SMTP server diagnostics. It's not my preferred method, however you can always try external services for SMTP server diagnostics.
  
-Vist [[http://mxtoolbox.com/diagnostic.aspx|MXToolBox's Email Server Test]] and provide the remote mail server (eg. mx1.hotmail.com) for a diagnostic report. +Vist ((http://mxtoolbox.com/diagnostic.aspx))[[http://mxtoolbox.com/diagnostic.aspx|MXToolBox's Email Server Test]] and provide the remote mail server (eg. mx1.hotmail.com) for a diagnostic report. 
email/troubleshooting/test-remote-smtp-connection.txt · Last modified: 2020/06/11 08:35 by Karson N.