E-Mail relaying problems

Declan Moriarty declan.moriarty at ntlworld.ie
Sun Oct 31 09:51:58 PST 2004

Currently I am on "broadband" with my least favourite ISP, NTL. Incoming
mail seems fine, but outgoing is very unreliable. There are local
issues (send addresses misspelled, closing down with mail in the queue),
but these aside, mail is not getting out. The chain is:

Mutt-1.3.99 --> Postfix-2.0.13 --> NTL(Using Intermail AFAIK) --> world
outside. Here's a log of a message that _was_not_ received


Oct 28 17:17:29 genius postfix/pickup[161]: 53CFF96A8D: uid=1013

Oct 28 17:17:29 genius postfix/cleanup[218]: 53CFF96A8D:
message-id=<20041028161729.GA213 at genius.chateau.dec>

Oct 28 17:17:29 genius postfix/qmgr[162]: 53CFF96A8D:
from=<genius at chateau.dec>, size=1414, nrcpt=1
(queue active)

Oct 28 17:17:39 genius postfix/smtp[220]: 53CFF96A8D:
to=<CHIPDIR-L at fatcity.com>, relay=smtp.ntlworld.ie[],
delay=10, status=sent (250 Message received:20041028161720.HFKR26479.mta08
-svc.ntlworld.com at genius.chateau.dec)

~~~~~~~~~~~~~~~~And this one was:

Oct 29 09:31:01 genius postfix/pickup[161]: 7D03896A8D: uid=1009

Oct 29 09:31:01 genius postfix/cleanup[300]: 7D03896A8D:
message-id=<20041029083101.GA259 at genius.chateau.dec>

Oct 29 09:31:01 genius postfix/qmgr[162]: 7D03896A8D:
from=<dec at chateau.dec>, size=2915, nrcpt=1 (queue active)

Oct 29 09:31:03 genius postfix/smtp[302]: 7D03896A8D:
to=<blfs-support at linuxfromscratch.org>,
relay=smtp.ntlworld.ie[], delay=2, status=sent (250 Message 
received: 20041029083016.GMCG13844.mta01-svc.ntlworld.com at genius.chateau.dec)

I have noted that one user more than others is getting mail lost, but
that shouldn't be an issue once they both get mail outside this box.

I presume the problem to be one of routing. NTL cannot solve these sort
of issues and will go out to lunch on it blaming linux. The box is currently 
online in both windoze and linux, so running my own mail server is out. Mebbe
make a firewall at some upcoming pagan festival - Xmas might be a good

Although I have a 'dynamic IP' in fact I get the same IP, but of course
as soon as I rely on that things will change. I gather I need a trusted
relay for sending, or else just send through webmail, which is a pain.

I could try hacking into one of the local isps and sending (I believe
one other local isp is as dirty and wet behind the ears as ntl) but I'd
really like a sensible way of doing this.


	With best Regards,

	Declan Moriarty.

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