SMTP 214 Help Message vs 235 Authentication Successful
Both SMTP 214 (Help Message) and 235 (Authentication Successful) belong to the 2xx Positive Completion category. 214 indicates 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. Meanwhile, 235 means that the client has been successfully authenticated using the AUTH command. The server will now accept mail commands from this authenticated session.
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.
Описание
The client has been successfully authenticated using the AUTH command. The server will now accept mail commands from this authenticated session.
Когда вы это видите
After submitting valid credentials via the AUTH command (LOGIN, PLAIN, or other SASL mechanism). The server has verified your identity and you can now send mail.
Как исправить
No fix needed — authentication succeeded. If you expected this but received a different code, double-check your username, password, and the authentication mechanism.
Ключевые различия
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.
SMTP 235: The client has been successfully authenticated using the AUTH command. The server will now accept mail commands from this authenticated session.
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.
You encounter 235 when after submitting valid credentials via the AUTH command (LOGIN, PLAIN, or other SASL mechanism). The server has verified your identity and you can now send mail.
Когда что использовать
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. For 235 (Authentication Successful): No fix needed — authentication succeeded. If you expected this but received a different code, double-check your username, password, and the authentication mechanism.