sendmail setup

Josh Paetzel josh at
Tue Feb 6 21:44:42 UTC 2007

On Tuesday 06 February 2007 15:35, usleepless at wrote:
> List, Guys and Girls,
> although i know this is not a specific freebsd issue, i will ask
> the question nevertheless.
> normally, i sent my outgoing email through my isp ( relay.x.z ).
> this server seems to be down at the moment.
> so after working with bsd for years, i decided to dive into
> sendmail. i read a lot, setup the stuff and tested sh*t.
> so basically, it seems to work fine: i can send messages between
> machines on the LAN, but messages to the outside(gmail, other
> domains) timeout.
> i ran tcpdump on the external interface, and the only thing that
> seems to happen is my machine contacting the other machines, but
> they never reply!:
> 22:24:25.763774 x.y.z.4091 > S
> 1796563309:1796563309(0) win 57344 <mss 1460> (DF)
> how come? how do i find out? i checked /var/log/security and stuff
> is not being blocked by ipfw.
> sendmail reports:
> stat=Deferred: Operation timed out with
> i have masqueraded(sendmail) with my isp-assigned-domain-name (
> ), and with another domain i own.
> am i missing something obvious?
> thanks in advance for any help,
> regards,
> usleep

It's highly possible your ISP is blocking port 25 to everything but 
their mailservers in an effort to keep their customers from running 
open relays and other nasty spam software.


Josh Paetzel

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