Blocked_mail_from_ips MTA option

From MsgServerDocWiki

(Link to this page as [[Blocked mail from ips MTA option]])
Jump to: navigation, search



MAIL FROM domain blocking by IP address (blocked_mail_from_ips)

The introduction of DNS wildcard entries in the COM and ORG top level domains which occurred in September 2003 had severely limited the effectiveness of the mailfromdnsverify channel option. As of the Serrano release of the MTA, the mailfromdnsverify channel option code was modified to address this. When the DNS returns one or more A records (which would normally be considered a "success" and the message would be allowed in), their values are compared against the domain literals specified by the blocked_mail_from_ips MTA option. If a match is found, then the domain is considered to be invalid. Thus in order to restore useful behavior to the mailfromdnsverify channel option, the current correct setting of this option is: 

blocked_mail_from_ips=[64.94.110.11]

See also: MTA options, Option value syntax, Getting option changes to take effect, MTA options, listed alphabetically, MTA options, listed by functional groups, DNS lookup options, New features in Serrano, dns_verify, mailfromdnsverify channel option.

Retrieved from "http://msg.wikidoc.info/index.php/Blocked_mail_from_ips_MTA_option"
Personal tools