[nycbug-talk] Comcast/Optimum Online, Postfix, and OpenBSD (WAS (No Subject))

[Bjorn Nelson]

Jay,

On Mar 22, 2005, at 6:07 PM, Jay Savage wrote:
> I'm wondering if anyone else out there is using optimum online in the
> tri-state area?  I recently switched from Earthlink DSL, and I'm
> having a devil of a time getting my OpenBSD 3.6 box to relay mail.

Are you using PPPoE?  You might want to lower your MTU.  I was having 
problems with clients accessing my web server until I lowered my MTU to 
1484.

-Bjorn