This may not be a "fedora" problem, so if you know where I should ask this,
please let me know. This is a mail problem, but I suspect that the "real"
problem is named or something else. I don't know.
OK, here goes. I have a personal machine that has 5 static ip addresses. Here's my
% cat hosts
# Automatically generated by OnApp (2.3.3)
184.108.40.206 hope.billoblog.com billoblog.com
220.127.116.11 www.bill-oliver.com bill-oliver.com
18.104.22.168 www.cindyo.net cindyo.net
22.214.171.124 www.forensicsurveys.com forensicsurveys.com
Here's some hostname fun:
forensicpath.biz billoblog.com bill-oliver.com cindyo.net
126.96.36.199 188.8.131.52 184.108.40.206 220.127.116.11 18.104.22.168
All of these have virtual hosts wrt apache, though only a couple actually have web pages,
and, it all seems to work well enough, web-wise.
But here's the rub. I use sendmail for my MTA, and I use billoblog.com
SMART_HOST. Sendmail relays all these domains without a problem, AFAIK. All the users on
this machine have <user>(a)billoblog.com as their email address except my wife, who
But... Cindy (my wife, cindy(a)cindyo.net) is having her mail rejected by SuddenLink. If
she sends mail to <user>(a)suddenlink.com, it gets bounced. The error sent by
SuddenLink is simply "You cannot send email to this domain." Mail will send fine
everywhere else -- aol, verizon, amazon, etc.
Oddly, if *I* send email **from the same machine** as "vendor(a)billoblog.com",
SuddenLink will accept and deliver the mail.
So, I'm thinking, what's the difference between me sending email as
"vendor(a)billoblog.com" and "cindy(a)cindyo.net" from the same server?
One is relayed and one is not. The mail is seen by SuddenLink as being delivered by
"hope.billoblog.com," which is my mailserver's hostname. So, the only thing
I can thing of is that SuddenLink is seeing a relay and assuming it's being spoofed.
But I don't know -- I called SuddenLink and they had no idea why they were bouncing
the mail, didn't care, and said that they didn't support personal servers so go
So, I thought, hmmmm... I wonder if it would be possible to have a different hostname for
different ip addresses? In other words, could I, on the same machine, serve mail as
"hope.billoblog.com" when the user was "vender(a)billoblog.com" and be
"www.cindyo.net" when the user was "cindy(a)cindyo.net?"
I tried the kneejerk thing of simply adding www.cindyo.net
sendmail SMART_HOST, i.e. changing
That just started giving me DNS MX loop errors.
If there's a postfix fix, I'll happily switch over...