Technical Tip: How to configure specific 'MAIL FROM' for the recipient verification (Recipient Address Verification)
Description
Solution
This article explains how to configure specific 'MAIL FROM' for the recipient verification (Recipient Address Verification).
Microsoft Office 365 does not accept a blank 'MAIL FROM': which is the FortiMail default setting for SMTP recipient verification.
Use the method below to add an envelope from address to solve the problem.
Solution
1) Run the following command to add an envelope from address for the recipient verification.
# config mailsetting smtp-rcpt-verificationset mail-from-addr <email_address>end
2) For this example, 'ftnt@lab.com' has been configured as the 'MAIL FROM'.3) As per below packet trace, FortiMail is using the configured 'MAIL FROM' to do the recipient verification.
