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Your domain has been blacklisted and can no longer send mail to other Internet
domains.
Inbound relay controls: Close down your open relay, "Deny messages to be
sent to the following external domains: *" and "Deny messages from the
following internal hosts to be sent to external internet domains: *" (* means
all).
Contact the Administrator of the DNS blacklist site where your domain is
blacklisted and request your domain be removed from their list. This often
requires that additional checks be conducted after you close down your relay.
Inbound messages are addressed to bogus (invalid) users in your domain (more
likely spam).
Inbound intended recipient controls: Enable "Verify that local domain
recipients exist in the Domino Directory" to deny messages for recipients not
listed in the Domino Directory.
Inbound sender controls: If this continues, deny messages from this domain.
A new virus has been identified and reported on the Web but it has not been
incorporated into your vendor's anti-virus database. You want to stop these
messages from coming into your domain.
Server mail rules: Create a rule that moves messages with particular
extension types (bat, exe, vbs, and so forth) to a quarantine database or do
not accept these types of attachments.
You suspect that internal users are forwarding e-mail chain letters or Web hoaxes
to other users.
Server mail rules: Create a rule that acts on messages based on the contents
of the messages believed to be the offending messages; move them to a
database for further analysis.
Spammers are sending mail to your public group names.
Disable the ability to route SMTP mail to your groups by enabling the server
notes.ini variable
server. You can also use reader lists to control who can send mail to individual
groups.
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Lotus Domino 6 spam Survival Guide for IBM eServer
on your inbound SMTP
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