Domino mail server

Current configuration is:

• Two clustered servers running 6.5.1
• "Transaction Logging": enabled
• "Automatically Restart Server After Fault/Crash"::enabled

Most of the problems are caused by badly formatted emails.  To recover from abends do the following:

1. Comment out Router from ServerTasks in notes.ini
2. Restart the server and allow the recovery manager to do a fixup on all mail databases.  This can take an hour or more.
3. load router

Might need to repeat the process several times.  Also it helps to stop the smtp task and clean up mail.box

Spam filters list here - check the lists accuracy with Blacklist Monitor

Current list:
dnsbl.njabl.org;
dsn.rfc-ignorant.org;
zen.spamhaus.org;
list.dsbl.org;
dul.dnsbl.sorbs.net;
bl.spamcop.net;
multi.uribl.com;
safe.dnsbl.sorbs.net ;
cbl.abuseat.org ;
dyna.spamrats.com

To resolve blacklist issue use mxtoolbox 
For Gmail use this process See also How to Remove Your IP from Gmail’s Blacklist
Spam Blacklist Removal Tips