SMTP 211 System Status vs 214 Help Message
Both SMTP 211 (System Status) and 214 (Help Message) belong to the 2xx Positive Completion category. 211 indicates that a system status reply providing information about the mail server's current state. This is typically sent in response to a HELP or system inquiry command. Meanwhile, 214 means that a help message response containing information about the server's supported commands or a specific command's usage. This is a human-readable reply to the HELP command.
Описание
A system status reply providing information about the mail server's current state. This is typically sent in response to a HELP or system inquiry command.
Когда вы это видите
When querying the mail server for its status or capabilities. The server is sharing diagnostic or informational details about itself.
Как исправить
No fix needed — this is an informational response. If the status indicates a problem, review the server's configuration or contact the mail administrator.
Описание
A help message response containing information about the server's supported commands or a specific command's usage. This is a human-readable reply to the HELP command.
Когда вы это видите
After sending the HELP command to the SMTP server. The response lists available commands or provides usage details for the command you specified.
Как исправить
No fix needed — this is a normal informational response. Use the provided help text to understand which commands the server supports.
Ключевые различия
SMTP 211: A system status reply providing information about the mail server's current state. This is typically sent in response to a HELP or system inquiry command.
SMTP 214: A help message response containing information about the server's supported commands or a specific command's usage. This is a human-readable reply to the HELP command.
You encounter 211 when when querying the mail server for its status or capabilities. The server is sharing diagnostic or informational details about itself.
You encounter 214 when after sending the HELP command to the SMTP server. The response lists available commands or provides usage details for the command you specified.
Когда что использовать
For 211 (System Status): No fix needed — this is an informational response. If the status indicates a problem, review the server's configuration or contact the mail administrator. For 214 (Help Message): No fix needed — this is a normal informational response. Use the provided help text to understand which commands the server supports.