Hello because my antispam need to work with sendmail i have installed
sendmail/qmail in the same linux CentOS 4.4 Box.

I have then box working sendmail is listening to port 25 and qmail is
listening to port 2525. I have changed the mailer table to look like
this.

acelerate.net RELAY:[200.105.128.220]
..acelerate.net RELAY:[200.105.128.220]

But when I try to send an email i get this error:

Sep 11 10:26:52 mail sendmail[7334]: k8BEQfWI006074: SYSERR(root):
[200.105.128.131] config error: mail loops back to me (MX problem?)
Sep 11 10:26:52 mail sendmail[7334]: k8BEQfWI006074:
to=<uiimiy@acelerate.net>, delay=00:00:09, xdelay=00:00:00,
mailer=relay, pri=151746, relay=[200.105.128.131] [200.105.128.131],
dsn=5.3.5, stat=Local configuration error.

I have changed the sendmail.mc to look like this:

define(`confRELAY_MAILER', `esmtp')
define(`RELAY_MAILER_ARGS', `TCP $h 2525')

Any will be appreciate it, because i'm new to sendmail but i can
migrate from qmail to sendmail because of internal Policies.

Thanks in advance