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Postfix: The Definitive Guide by Kyle D. Dent

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Name

debug_peer_list

Possible values:

hosts/domains

Default:

(null)

For help with troubleshooting, Postfix can increase logging for particular hosts that you might be having problems with. debug_peer_list specifies a list of one or more hosts, domains, or regular expression patterns whose logging should be increased by the degree specified in debug_peer_level.

Example:

debug_peer_list = example.com, mail.ora.com

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