Reply codes grouped by command
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 unrecognised |
| |
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 unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
504 |
Command parameter not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| MAIL |
| |
250 |
Requested mail action okay, completed |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
421 |
<domain> Service not available, closing transmission channel |
| RCPT |
| |
250 |
Requested mail action okay, completed |
| |
251 |
User not local; will forward to <forward-path> |
| |
550 |
Requested action not taken: mailbox unavailable |
| |
551 |
User not local; please try <forward-path> |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
553 |
Requested action not taken: mailbox name not allowed |
| |
450 |
Requested mail action not taken: mailbox unavailable |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
503 |
Bad sequence of commands |
| |
521 |
<domain> does not accept mail [rfc1846] |
| |
421 |
<domain> Service not available, closing transmission channel |
| DATA |
| |
354 |
Start mail input; end with <CRLF>.<CRLF> |
| |
451 |
Requested action aborted: local error in processing |
| |
554 |
Transaction failed |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
503 |
Bad sequence of commands |
| |
421 |
<domain> Service not available, closing transmission channel |
| received data |
| |
250 |
Requested mail action okay, completed |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
554 |
Transaction failed |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| RSET |
| |
200 |
(nonstandard success response, see rfc876) |
| |
250 |
Requested mail action okay, completed |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
504 |
Command parameter not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| SEND |
| |
250 |
Requested mail action okay, completed |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| SOML |
| |
250 |
Requested mail action okay, completed |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| SAML |
| |
250 |
Requested mail action okay, completed |
| |
552 |
Requested mail action aborted: exceeded storage allocation |
| |
451 |
Requested action aborted: local error in processing |
| |
452 |
Requested action not taken: insufficient system storage |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| VRFY |
| |
250 |
Requested mail action okay, completed |
| |
251 |
User not local; will forward to <forward-path> |
| |
550 |
Requested action not taken: mailbox unavailable |
| |
551 |
User not local; please try <forward-path> |
| |
553 |
Requested action not taken: mailbox name not allowed |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
504 |
Command parameter not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| EXPN |
| |
250 |
Requested mail action okay, completed |
| |
550 |
Requested action not taken: mailbox unavailable |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
504 |
Command parameter not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| HELP |
| |
211 |
System status, or system help reply |
| |
214 |
Help message |
| |
500 |
Syntax error, command unrecognised |
| |
501 |
Syntax error in parameters or arguments |
| |
502 |
Command not implemented |
| |
504 |
Command parameter not implemented |
| |
421 |
<domain> Service not available, closing transmission channel |
| NOOP |
| |
200 |
(nonstandard success response, see rfc876) |
| |
250 |
Requested mail action okay, completed |
| |
500 |
Syntax error, command unrecognised |
| |
421 |
<domain> Service not available, closing transmission channel |
| QUIT |
| |
221 |
<domain> Service closing transmission channel |
| |
500 |
Syntax error, command unrecognised |
| TURN |
| |
250 |
Requested mail action okay, completed |
| |
502 |
Command not implemented |
| |
500 |
Syntax error, command unrecognised |
| |
503 |
Bad sequence of commands |
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