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max_deliveries_per_connection — maximum number of messages to deliver before closing a connection


Max_Deliveries_Per_Connection = 0


The maximum number of messages that will be sent over a single SMTP connection. This option limits successful deliveries only. If you wish to limit the number of attempted RCPT TO commands that are sent, use max_recipients_per_connection. Max_Deliveries_Per_Connection is configurable globally, in the binding scope and on a per-domain basis. If set to 0 (the default), then no maximum limit will be enforced.


max_deliveries_per_connection is valid in the binding, binding_group, domain and global scopes.

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