Fortinet 3.0 MR4 - page 238

FortiMail™ Secure Messaging Platform Version 3.0 MR4 CLI Reference
238 06-30004-0420-20080814
mailserver smtp delivery set
mailserver smtp delivery
Selecting ‘yes’ for this command will turn off ESMTP delivery.
Syntax
set mailserver smtp delivery noesmtp {yes | no}
History
FortiMail v3.0 MR3 New.