I am not sure if this is even my problem but I want to give it a shot.
In my maillogs I see this error:
Code:
maillog-20140531.gz:May 30 14:29:13 smtp01 sendmail[20012]: s4UITCSH020008: to=<admin@wherever.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=153765, relay=aspmx.l.google.com. [my ip address], dsn=5.0.0, stat=Service unavailable
Then 8 hours later a successful delivery.
Is there a way I can change that retry timeout from 8 hours to say 15 minutes?