Sendmail using the wrong IPv6 address

Arenlor · 09-05-2013, 03:38 PM

I'm trying to figure out why my server has just randomly decided that it'd send using the wrong IPv6 address. Either that or Google has just started using/SPF checking IPv6. My domain is on 2607:f2f8:3180::2 yet sendmail seems to want to use ::18 instead. Is there something I'm missing to force sendmail to use the IP of the domain in the from?

rosehosting.com · 09-06-2013, 01:45 AM

Edit your /etc/mail/sendmail.mc configuration file and add/modify the following lines:

DAEMON_OPTIONS(`Port=smtp,Name=MTA, Family=inet6')dnl
dnl DAEMON_OPTIONS(`Name=IPv6, Family=inet6, Addr=2607:f2f8:3180::2')

then, execute the following commands:

cd /etc/mail

make all

/etc/init.d/sendmail restart