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

In article <1157984975.873186.58190@d34g2000cwd.googlegroups. com> "darth
timeus" <darth.timeus@gmail.com> writes:
>
>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.

Assuming you actually managed to get sendmail to connect to qmail on the
same host (the IP address doesn't match what you have above), this
happens because sendmail sees its own host name in the SMTP greeting
message and assumes that there is a loop that needs to be broken.

>I have changed the sendmail.mc to look like this:
>
>define(`confRELAY_MAILER', `esmtp')
>define(`RELAY_MAILER_ARGS', `TCP $h 2525')

From doc/op/op.* in the distribution, section "Define Mailer":

k Normally when sendmail connects to a host via
SMTP, it checks to make sure that this isn't acci-
dently the same host name as might happen if send-
mail is misconfigured or if a long-haul network
interface is set in loopback mode. This flag dis-
ables the loopback check. It should only be used
under very unusual circumstances.

To set this for the relay mailer from the .mc file:

MODIFY_MAILER_FLAGS(`RELAY', `+k')

--Per Hedeland
per@hedeland.org

Thank you very much, now it is working
Per Hedeland wrote:
> In article <1157984975.873186.58190@d34g2000cwd.googlegroups. com> "darth
> timeus" <darth.timeus@gmail.com> writes:
> >
> >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.
>
> Assuming you actually managed to get sendmail to connect to qmail on the
> same host (the IP address doesn't match what you have above), this
> happens because sendmail sees its own host name in the SMTP greeting
> message and assumes that there is a loop that needs to be broken.
>
> >I have changed the sendmail.mc to look like this:
> >
> >define(`confRELAY_MAILER', `esmtp')
> >define(`RELAY_MAILER_ARGS', `TCP $h 2525')
>
> From doc/op/op.* in the distribution, section "Define Mailer":
>
> k Normally when sendmail connects to a host via
> SMTP, it checks to make sure that this isn't acci-
> dently the same host name as might happen if send-
> mail is misconfigured or if a long-haul network
> interface is set in loopback mode. This flag dis-
> ables the loopback check. It should only be used
> under very unusual circumstances.
>
> To set this for the relay mailer from the .mc file:
>
> MODIFY_MAILER_FLAGS(`RELAY', `+k')
>
> --Per Hedeland
> per@hedeland.org