Mail System Error - Returned Mail

[tristanlee85]

[root@server ~]# postconf -n | grep mynetworks
mynetworks = 127.0.0.0/8
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination


[root@server ~]# postconf -d | grep mynetworks
mynetworks = 127.0.0.0/8 192.168.1.0/24
mynetworks_style = subnet
parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks
smtpd_client_event_limit_exceptions = ${smtpd_client_connection_limit_exceptions:$mynetworks}
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
[root@server ~]#

[falko]

Originally Posted by tristanlee85

[code][root@server ~]# postconf -n | grep mynetworks
mynetworks = 127.0.0.0/8
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject _unauth_destination

That setting is ok. No spammer should be able to abuse your system.

[tristanlee85]

Well I was just thinking to myself today that I haven't any spam, but I spoke too soon. All of a sudden I downloaded over 100 returned mail messages. Some messages were even received on accounts that have never sent outgoing mail before.

Either the Spam control isn't working in ISPConfig or something more serious is happening. I just confuses me on how I can be getting e-mails to an account I've never used before.

It's also weird because on the mail account that sends out e-mails on my forum, that's where most of the returned messages come from.

[till]

Please check if there are any security updates available for your forum software.

[tristanlee85]

I'll look into that, but that still doesn't explain how I'm getting mail returned to an account not even linked to the forum software as well as an account that was created a few days ago with no outgoing messages except through VPN.

[tristanlee85]

Can I specify if a config file somewhere to block or delete e-mails with a specific title? This is getting ridiculous.

[till]

Originally Posted by tristanlee85

Can I specify if a config file somewhere to block or delete e-mails with a specific title? This is getting ridiculous.

You canb try to do this with procmail:

http://www.howtoforge.com/forums/showthread.php?t=5561