DevHeads.net

Hi All,

Very intresting problem from my postfix server to BorderWare MXtreme
Mail Firewall SMTP 1)

In some rare case remote smtp server replies: said: 451 Error:
internal error 512 (in reply to end of DATA command))

I think this is bug on BorderWare MXtreme Mail Firewall SMTP server?,
but how to debug the cause of this? How to take packet trace from this
message that fails?

1) http://www.extranet.co.nz/exnet_fr_prod_mxtreme.htm

Hi,

One problem: how to force postfix to deliver one outgoing host via
other smtp relay? /etc/postfix/transport ? smtp server is delivering
all mails directly via smtp without smarthost.

I am running ssl+sasl authenticated mailgateway and problem is that in
some cases clients from world are sending mail from "blacklisted" networks.

The main problem is that spamassasin is analyzing received headers and
it might tag message as spam by received by headers.

So, How I can remove headers only from outgoing mail using:
http://www.posluns.com/guides/hedrem.html

I am currently using postfix 2.3.x on RHEL for mail proxy and mailserver.

Is there any good reason to update to 2.6 ? and if is, is there any good
and stable rpm repositories for RHEL 5 on web ?

I have problem with masquerading local users, for example:

echo foo | mail eero at email -s 'foo'

shows from field from <...> at mailserver dot maildomain.com, but I want email
from header always to show from <...> at maildomain dot com and possible from
firstname.<...> at maildomain dot com if possible?

How to enable address masquarade also on local users?