ZCS Administrator Guide 8.0
ZCS Administrator Guide 8.0
Network Edition


Managing ZCS Configuration > Set Email Recipient Restrictions

Set Email Recipient Restrictions
RBL (Realtime Blackhole Lists) can be turned on or off in the MTA from the administration console Global Settings>MTA page.
For protocol checks, the following three RBLs can be enabled:
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The following RBLs can also be set.
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As part of recipient restrictions, you can also use the reject_rbl_client <rbl hostname> option.
To add RBLs from the administration console, go to the Global Settings>MTA>DNS checks section, List of RBLs.
For a list of current RBL’s, see the Comparison of DNS blacklists article at http://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists.
Add RBLs Using the CLI
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zmprov gacf | grep zimbraMtaRestriction
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zmprov mcf zimbraMtaRestriction [RBL type]
For example, to add all possible restrictions:
zmprov mcf zimbraMtaRestriction reject_invalid_hostname zimbraMtaRestriction reject_non-fqdn_hostname zimbraMtaRestriction reject_non_fqdn_sender zimbraMtaRestriction “reject_rbl_client dnsbl.njabl.org” zimbraMtaRestriction “reject_rbl_client cbl.abuseat.org” zimbraMtaRestriction “reject_rbl_client bl.spamcop.net” zimbraMtaRestriction “reject_rbl_client dnsbl.sorbs.net” zimbraMtaRestriction “reject_rbl_client sbl.spamhaus.org” zimbraMtaRestriction “reject_rbl_client relays.mail-abuse.org”
Note:
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