|
|
ESMTP, SMTP
Connect and Data Receive
Email RFC Reply Codes Command Groups Descriptions
Request For Comment (RFC)
A document outlining a standard and proposed standard to an existing standard.
The protocols and standards that currently govern RFC are constantly changing and not limited to below examples.
ESMTP / SMTP
Connect
and Data
Receive
Reply Codes Command Groups
| Command | Code | Description | | | | | |
Connect |
220 |
<domain> Service ready | |
|
421 |
<domain> Service not available, closing transmission channel | | |
|
| |
HELO |
250 |
Requested mail action okay, completed | | |
500 |
Syntax error, command unrecognized | |
|
501 |
Syntax error in parameters or arguments | |
|
504 |
Command parameter not implemented | |
|
521 |
<domain> does not accept mail [rfc1846] | |
|
421 |
<domain> Service not available, closing transmission channel | | | | | |
EHLO |
250 |
Requested mail action okay, completed | | |
550 |
Not implemented | |
|
500 |
Syntax error, command unrecognized | |
|
501 |
Syntax error in parameters or arguments | |
|
504 |
Command parameter not implemented |
|
|
421 |
<domain> Service not available, closing transmission channel
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