[ale] Postfix problems - ripping my hair out

[John Wells]

John Wells said:
> I can think of a number of things that might cause this, but if you can't
> hit 25 from the outside world, but can from the inside, it's obviously
> either a router problem or a problem with your ISP.  What ISP are you
> using, out of curiosity?

Woops...I take that back:

09:07:58.756109 tidal.53562 > user-0c99373.cable.mindspring.com.smtp: S
432120271:432120271(0) win 5840 <mss 1460,sackOK,timestamp 50481073
0,nop,wscale 0> (DF) [tos 0x10]
09:07:58.836387 user-0c99373.cable.mindspring.com.smtp > tidal.53562: R
0:0(0) ack 432120272 win 0 (DF)

Try changing inet_interfaces in main.cf to:

inet_interfaces = all