Author: Walt Reed Date: To: Exim Users Subject: Re: [Exim] DNS timeout?
On Thu, Sep 04, 2003 at 03:13:39PM -0700, W M Brelsford said: > Since installing exim on a new machine I've been getting occasional
> host lookup failures, e.g.:
>
> 2003-09-03 15:01:58 19ufhO-0007CC-2V <= foo@??? U=joe P=local-esmtp S=3534
> 2003-09-03 15:03:36 19ufhO-0007CC-2V == bar@??? R=isps defer (-36): host lookup for outgoing.verizon.net did not complete (DNS timeout?)
> 2003-09-03 15:03:44 19ufhO-0007CC-2V => k2di2@??? R=isps T=auth_smtp H=outgoing.verizon.net [206.46.170.8]
>
> It appears that something gets stuck in the first attempt to access
> DNS; it then succeeds immediately on the next try and delivers to
> the second address.
Ugg. BTW, outgoing.verizon.net is a horrible mail relay. It's
reliability is quite bad. It's not RFC compliant either - it won't pass
null sender mail (bounce messages) and the Verizon postmaster refuses to
fix it.
Not that this solves your problem, but you will probably need to find a
better mail relay at some point.
