I am experiencing a high number of postfix SMFIC errors for every
milter I have installed (DKIM,DMARC,SPF). This problem persists with
postfix versions 2.6.6 and 3.0.1 on CentOS6. Has anyone else seen
these errors before and solved them?
Jun 15 18:47:36 mail-cluster1 postfix/cleanup[16080]: warning: milter
inet:localhost:8892: can't read SMFIC_HEADER reply packet header:
Success
Jun 15 20:58:31 mail-cluster1 postfix/smtpd[12242]: warning: milter
inet:localhost:8892: can't read SMFIC_MAIL reply packet header:
Success
Jun 15 20:58:32 mail-cluster1 postfix/smtpd[19545]: warning: milter
inet:localhost:8891: can't read SMFIC_RCPT reply packet header:
Success
Jun 15 20:58:32 mail-cluster1 postfix/smtpd[17699]: warning: milter
inet:localhost:8891: can't read SMFIC_RCPT reply packet header:
Success
Jun 15 20:58:32 mail-cluster1 postfix/cleanup[20340]: warning: milter
inet:localhost:8893: can't read SMFIC_HEADER reply packet header:
Broken pipe
Jun 15 20:58:32 mail-cluster1 postfix/smtpd[18181]: warning: milter
inet:localhost:8891: can't read SMFIC_MAIL reply packet header:
Success
Jun 15 20:58:32 mail-cluster1 postfix/cleanup[19600]: warning: milter
inet:localhost:8891: can't read SMFIC_HEADER reply packet header:
Success
Jun 15 20:58:32 mail-cluster1 postfix/cleanup[20062]: warning: milter
inet:localhost:8892: can't read SMFIC_HEADER reply packet header:
Broken pipe
I have tried the following items without success.
- Tried milter protocol 2 thru 6
- Changed milter timeouts to the following values
milter_connect_timeout = 600s
milter_command_timeout = 600s
milter_content_timeout = 1200s
- Upgraded postfix from version 2.6.6 to 3.0.1
- Was concerned it could be related to a high number of DNS request so
I installed unbound caching.
- Built from source latest libmilter and installed (8.15.1)
I am not sure what else I can try to resolve this problem. Any
suggestions or help is much appreciated.
Thanks!
-Nick
