[mdlug] AT&T DSL and postfix

[Michael ORourke]

Lug nuts,

Not sure if any of you have run into this recently... but I was setting up a 
postfix email server which is on an AT&T DSL (with a dynamic IP) and I 
configured it with SMTP AUTH, so that it could use AT&T's smtp server as a 
smart host (relay host).  But I keep getting the following error...
###snipped from /var/log/mail.info
Oct 14 18:37:54 ark postfix/smtp[14772]: EFD0A106309: 
to=<mrorourke at XXXXXXXX.net>, relay=68.142.229.41[68.142.229.41]:25, 
delay=246648, delays=246647/0.13/0.71/0.18, dsn=5.0.0, status=bounced (host 
68.142.229.41[68.142.229.41] said: 553 From: address not verified; see 
http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html (in 
reply to MAIL FROM command))
###End
The From address would be something like root at server.mydomain.net or 
mike at server.mydomain.net.

Now if I change the masquerading settings so that the From address gets 
rewritten to a valid address on the AT&T network, such as 
myusername at sbcglobal.net , then it works.  But I don't want everything to be 
rewritten in that manner.  Eventually I would like to host our own domain's 
email.  But this doesn't seem possible.

Maybe the solution is to change DSL providers???

-Mike