Disabling IPv4 in Sendmail

Steve Bertrand steve at ipv6canada.com
Tue Apr 27 17:05:35 UTC 2010


Hi all,

I'm trying to configure an MTA/MSA using Sendmail on FreeBSD 8.

The catch is, is that I don't have any IPv4 addresses on the box (not
even loopback).

I'm almost there, but I'm still missing something. Here is what I've
changed in my configs:

In submit.mc, per the documentation, I've changed:

dnl If you use IPv6 only, change [127.0.0.1] to [IPv6:::1]
FEATURE(`msp', `[IPv6:::1]')dnl

...and in the main .mc, I've added:

dnl set SASL options
TRUST_AUTH_MECH(`GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN')dnl
define(`confAUTH_MECHANISMS', `GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN')dnl

...and modified a couple others:

DAEMON_OPTIONS(`Name=MTA, Port=smtp, Family=inet6, Modifiers=O')
DAEMON_OPTIONS(`Name=MSA, Port=587, Family=inet6')

It appears as though I've got the MTA portion working without error, but:

Apr 27 13:01:45 onlyv6 sendmail[43658]: daemon MSA: problem creating
SMTP socket
Apr 27 13:01:45 onlyv6 sendmail[43658]: NOQUEUE: SYSERR(root):
opendaemonsocket: daemon MSA: server SMTP socket wedged: exiting

...can someone spot what I may be missing?

Cheers,

Steve


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