550 |
5.7.1 |
550 [internal] [oob] |
bounce_logger module |
550 |
5.6.0 |
Body line too long (see RFC2822 section 3.5) |
See message. |
503 |
5.5.1 |
DATA without MAIL FROM |
See message. |
503 |
5.5.1 |
DATA without RCPT TO |
See message. |
550 |
5.6.0 |
Header line too long (see RFC2822 section 3.5) |
See message. |
550 |
5.6.0 |
Header not terminated by CR LF (see RFC2822 section 2.2) |
See message. |
550 |
5.6.0 |
Invalid header found (see RFC2822 section 3.6) |
See message. |
550 |
5.6.0 |
Lone CR or LF in body (see RFC2822 section 2.3) |
See message. |
550 |
5.6.0 |
Lone CR or LF in headers (see RFC2822 section 2.2) |
See message. |
501 |
5.5.1 |
MAIL FROM already established |
See message. |
501 |
5.5.2 |
MAIL FROM syntax error |
See message. |
501 |
5.5.2 |
MAIL FROM syntax error |
Triggered by an invalid address |
550 |
5.6.0 |
Missing CR LF . CR LF |
See message. |
550 |
5.6.0 |
Missing required RFC2822 Date field (see RFC2822 section 3.6) |
See message. |
554 |
|
No Valid Domain |
See message. |
501 |
5.5.2 |
RCPT TO syntax error |
See message. |
501 |
5.5.2 |
RCPT TO syntax error |
Triggered by an invalid address |
503 |
|
RCPT TO without MAIL FROM |
See message. |
550 |
5.5.1 |
RFC2821 HELO/EHLO needed |
See message. |
550 |
5.6.0 |
Required headers not found (see RFC2822 section 3.6) |
See message. |
|
4.3.0 |
Resource limitations, please try later |
See message. |
421 |
4.4.5 |
Service unavailable |
System outage |
452 |
4.5.3 |
Service unavailable, batch limit reached |
See message. |
421 |
4.4.5 |
Service unavailable, concurrency limit reached |
System outage |
452 |
4.5.3 |
Service unavailable, recipients per connection limit reached |
See message. |
452 |
4.5.3 |
Service unavailable, recipients per message limit reached |
See message. |
501 |
5.5.4 |
Syntax error (no parameters allowed) |
See message. |
421 |
|
This message is being 421’d |
Service is unavailable |
554 |
5.7.0 |
[internal] Blackholed |
"Blackhole" option is set to "internal" |
450 |
4.4.1 |
[internal] Connection Timed Out |
See message. |
554 |
5.4.5 |
[internal] Delivery not attempted (message expired) |
See message. |
554 |
5.4.4 |
[internal] Domain Lookup Failed |
See message. |
451 |
4.4.2 |
[internal] MAIL FROM argument hook failed |
See message. |
451 |
4.4.2 |
[internal] MAIL FROM arguments too long |
See message. |
554 |
5.7.0 |
[internal] Message manually purged |
Purged messages from the system console |
|
5.7.0 |
[internal] Message manually purged |
Used console command, "fail domain name" |
550 |
5.4.4 |
[internal] NULL MX domain does not accept mail |
See message. |
451 |
4.4.1 |
[internal] No valid hosts |
See message. |
451 |
4.4.1 |
[internal] No valid hosts (unable to make any connections) |
See message. |
551 |
5.4.6 |
[internal] Private/Loopback Address |
See message. |
451 |
4.4.2 |
[internal] RCPT TO argument hook failed |
See message. |
451 |
4.4.2 |
[internal] RCPT TO arguments too long |
See message. |
|
4.7.5 |
[internal] SSL cert common name does not match host |
See message. |
|
4.7.5 |
[internal] SSL cert must be signed by a valid CA |
See message. |
|
4.7.5 |
[internal] SSL certificate subject does not match host |
See message. |
451 |
4.7.6 |
[internal] STARTTLS required but not advertised |
See message. |
451 |
4.7.5 |
[internal] TLS negotiation failed |
See message. |
451 |
4.4.2 |
[internal] XCLIENT argument hook failed |
See message. |
451 |
4.7.6 |
[internal] XCLIENT required but not advertised |
See message. |
451 |
4.7.6 |
[internal] XCLUSTERMETADATA required but not advertised |
Cluster-related error |
451 |
4.7.6 |
[internal] XCLUSTERMETADATA supported version not advertised |
Cluster-related error |
451 |
4.4.2 |
[internal] connection closed by remote host |
See message. |
550 |
5.7.1 |
[internal] discarded by policy |
See message. |
554 |
5.4.7 |
[internal] exceeded max retries without delivery |
See message. |
554 |
5.4.7 |
[internal] exceeded max time without delivery |
See message. |
451 |
|
[internal] memory shortage while determining tls parameters |
See message. |
550 |
5.3.0 |
[internal] message body missing |
See message. |
451 |
4.4.2 |
[internal] no BODY response |
See message. |
451 |
4.4.2 |
[internal] no DATA response |
See message. |
451 |
4.4.2 |
[internal] no HELO/EHLO response |
See message. |
451 |
4.4.2 |
[internal] no MAIL FROM response |
See message. |
451 |
4.4.2 |
[internal] no METADATA reponse |
Cluster-related error |
454 |
4.4.4 |
[internal] no MX or A for domain |
See message. |
421 |
4.4.0 |
[internal] no MXs for this domain could be reached at this time |
See message. |
451 |
4.4.2 |
[internal] no RCPT TO response |
See message. |
451 |
4.4.2 |
[internal] no RSET response |
See message. |
451 |
4.4.2 |
[internal] no XCLIENT response |
See message. |
451 |
4.4.2 |
[internal] no banner |
See message. |
451 |
4.7.5 |
[internal] no clustermetadata go-ahead |
Cluster-related error |
451 |
4.7.5 |
[internal] no tls go-ahead |
See message. |
550 |
5.7.1 |
[internal] processed as FBL message, and disposition is blackhole |
FBL module |
|
5.7.0 |
[internal] rejected by policy |
See message. |
|
4.7.5 |
[internal] remote node SSL certificate not signed by a valid CA |
See message. |
451 |
4.4.2 |
[internal] send BODY failed |
See message. |
451 |
4.4.2 |
[internal] send DATA failed |
See message. |
451 |
4.4.2 |
[internal] send HELO/EHLO failed |
See message. |
451 |
4.4.2 |
[internal] send MAIL FROM failed |
See message. |
451 |
4.4.2 |
[internal] send RCPT TO failed |
See message. |
451 |
4.4.2 |
[internal] send RSET failed |
See message. |
451 |
4.7.5 |
[internal] send STARTTLS failed |
See message. |
451 |
4.4.2 |
[internal] send XCLIENT failed |
See message. |
451 |
4.7.5 |
[internal] send XCLUSTERMETADATA failed |
Cluster-related error |
451 |
4.4.2 |
[internal] send key failed |
Cluster-related error |
451 |
4.4.2 |
[internal] send metadata failed |
Cluster-related error |
451 |
4.4.2 |
[internal] send metadatadicts failed |
Cluster-related error |
421 |
4.3.4 |
allocated resources exceeded |
System outage |
503 |
5.5.1 |
bad sequence of commands |
See message. |
454 |
|
certificate expired |
SSL related |
454 |
|
certificate not yet valid: possible clock skew |
SSL related |
|
4.3.5 |
configuration error, please try later |
See message. |
|
5.5.0 |
error while reading body |
See message. |
501 |
5.5.2 |
invalid EHLO |
See message. |
501 |
5.5.2 |
invalid HELO |
See message. |
501 |
5.5.4 |
invalid arguments to RSET |
See message. |
421 |
4.3.0 |
message is too large to process at this time |
See message. |
|
4.3.5 |
message not yet parsed, can’t reparse |
See message. |
|
4.3.5 |
message parse and assemble didn’t round-trip |
See message. |
552 |
5.3.4 |
message size limit exceeded |
See message. |
551 |
5.7.1 |
recipient blackholed |
See message. |
550 |
5.7.1 |
relaying denied |
See message. |
451 |
4.3.0 |
transaction failed |
See message. |
501 |
5.5.4 |
unexpected argument to DATA |
See message. |
501 |
5.5.4 |
unexpected command |
See message. |
500 |
5.5.2 |
unrecognized command |
See message. |