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email:troubleshooting:error-numbers:501 [2015/01/23 15:33]
email:troubleshooting:error-numbers:501 [2015/02/04 08:42]
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-====== SMTP Error 501 ====== +====== SMTP Error 500 ====== 
-Description: ​501501501501501501501501+Description: ​<​blockquote>​Syntax error, command unrecognized (This may include errors such as command line too long)</​blockquote>​
 ==== What does this mean? ==== ==== What does this mean? ====
-<​!AWESOME MEANING!>​+The receiving SMTP mail server was unable to correct process the command(s) received. Also note, commands that are processed but not used will be handled with different response numbers.
-==== How to fix SMTP Error 501 ==== +==== How to fix SMTP Error 500 ==== 
-<​!AWESOME FIX!>+The unrecognized command response is typically in regards to antivirus or firewall software. To confirm if this is the case, temporarily disable each one, re-instating them if not the area of concern.
-=== Similar ​SMTP Errors ​=== +===SMTP Error 500 Examples ==== 
-**[[email:troubleshooting:​error-numbers:​501|#​ 501]]** +<​code>​SMTP Permanent Error500 Access Denied By Port Access</​code>​ 
 +<​code>​SMTP Error 500 Line too long</​code>​
email/troubleshooting/error-numbers/501.txt · Last modified: 2015/02/04 08:44 by dlevey