[ale] AT&T blocking 25

Michael H. Warfield mhw at WittsEnd.com
Wed Apr 16 13:58:07 EDT 2008


On Wed, 2008-04-16 at 13:16 -0400, Christopher Fowler wrote:
> We are back up in our office on AT&T and they are blocking 25.  I
> thought maybe specifying their server as a smart relay would work but it
> does not.

	If it's a business grade service, just ask them to unblock it.  Just
switched over one of my clients and there's no blocking what so ever.

	If you're running your office on a residential service, shrug, bone up
on IPv6 and find someone who will forward.

> I have a sendmail server in our datacenter that requires authentication.
> I would like it to be my smart relay for our office.

> I've added an iptables rule on that server to route port 26 -> 25.  From
> evolution I can send mail and I'm authenticating fine.  I need to
> program one of our servers to use that machine as a smart relay.  Would
> it be required to auth too?

	Mike
-- 
Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
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