I have been running milter-greylist from pkgsrc successfully on
NetBSD/i386 4-stable with postfix 2.5.x for a long time. I also use
spamass-milter. Recently I started getting the following (private data
redacted; it all looked fine).
Jan 19 11:47:38 hostname postfix/smtpd[16975]: warning: milter unix:/var/milter-greylist/milter-greylist.sock: can't read SMFIC_RCPT reply packet header: Connection timed out
Jan 19 11:47:38 hostname postfix/smtpd[16975]: NOQUEUE: milter-reject: RCPT from sending.host[ip.addr.c.d]: 451 4.7.1 Service unavailable - try again later; from=<fromuser@them> to=<user@hostname> proto=ESMTP helo=<fqdn.org>
The only thing that I think changed is that my box went from having a v6
address that didn't work to one that did, but that happened several days
before the problem.
It sort of looks like milter-greylist has gone out to lunch and doesn't
answer in time. Could this happen with bad RBL servers? - I do have a
lot of rules to delay longer for hosts on blocklists.
I will look further, but thought I'd mention this in case anyone else
has seen it.
NetBSD/i386 4-stable with postfix 2.5.x for a long time. I also use
spamass-milter. Recently I started getting the following (private data
redacted; it all looked fine).
Jan 19 11:47:38 hostname postfix/smtpd[16975]: warning: milter unix:/var/milter-greylist/milter-greylist.sock: can't read SMFIC_RCPT reply packet header: Connection timed out
Jan 19 11:47:38 hostname postfix/smtpd[16975]: NOQUEUE: milter-reject: RCPT from sending.host[ip.addr.c.d]: 451 4.7.1 Service unavailable - try again later; from=<fromuser@them> to=<user@hostname> proto=ESMTP helo=<fqdn.org>
The only thing that I think changed is that my box went from having a v6
address that didn't work to one that did, but that happened several days
before the problem.
It sort of looks like milter-greylist has gone out to lunch and doesn't
answer in time. Could this happen with bad RBL servers? - I do have a
lot of rules to delay longer for hosts on blocklists.
I will look further, but thought I'd mention this in case anyone else
has seen it.