Error 455 Cannot Deal With Command – Causes and Fixes
The server cannot deal with the command at this time. Causes For reasons unknown, the server is briefly unfit to...
SMTP
Simple Mail Transfer Protocol Error Codes
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Error 471 Error Of Mail Server – Causes and Fixes
An error of your mail server. It is often because an issue to the local spam-filter. It had caused the... -
Error 500 Syntax Error – Causes and Fixes
The server could not recognize the command due to a syntax error. This may involve errors such as command line... -
Error 501 Syntax Error -Causes and Fixes
Another syntax error, but not in the command but is in its parameters or arguments. It is also similar to... -
Error 502 Command Not Implemented – Causes and Fixes
Command not implemented. The parameters or alternatives being utilized when sending email from your local server are recognized, however it...