FireEye / SMTP error code 550

smtp;550 5.7.26 <example@example.com>: ETP205 DMARC Failure for domain

The message failed the DMARC policy for the sending domain. If the sending domain has a reject policy set for DMARC, the message must pass DKIM or have SPF aligned to the domain with a custom Return-Path. To resolve this, you'll need to contact your email service provider to see how to send a message that passes DMARC support.

░█▒▒▓█▓▓▓▓▓▓▓▓▓░██▒▓▓▓▓▓▓▓▓▓░░▓▒▓▒░█▒░▒▓▓▓▓▓▓▓▓▓░██▒▒▓▓░▒█░▒▓█░▓▓▓▓▓▓▓▓▓▓▓▒▒░▓░█▒▓░▓▒▒░▒█▒▓█▒▒█▒░▒█▒▒░▓▓▓▓▓▓▓▓▓▓▓▒█▒▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▒▒█▒░░▓▒▓▓▓▓▓▓▓▓▓▒░▓▒▓▒░▒░░░░░▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓█▒▒█▓▓▓▓▓▓▓▓▓█░▒░▓░░░▒░░█░▒▒▒█▓▓▓▓▓▓▓▓▓▓▒▓▓▒▒▒░░▒░▒▓░▓▓▓▓▓▓▓▓▓▒▒█▓░▒▓▓▓▓▓▓▓▓▓░░▒▓▒█▓▒▒██▒▒█▒░▒▓▓▒▒▒█░▓▓▓▓▓▓▓▓▓▒░▒▒░░▓▒▒░░▓▓▓▓▓▓▓▓▓▒░▒▓▒▓▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▓█▒█▒▒▒░░░▒░▓▒▓▓▓▓▓▓▓▓▓▓░▓░█▒░▒▓░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░▓▒░▒█▓▓▒░▒█▒░▒░▓▓▓▓▓▓▓▓▓▓█▒▓░▒▒▓▓▓▓▓▓▓▓▓▒░▒▒▒▒░▒█░▒█▒▒░▓▒█▓░█▓▓▓▓▓▓▓▓▓▒█▒░▓▒▓░░▓░▓▒▓░░█▓▓▓▓▓▓▓▓▓▓▓█▓▒▓▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▓█▓▓▓▓▓▓▓▓▓█▒▓░█░▓▓░▒█▓▒▓▒░█▒██▓▓▓▓▓▓▓▓▓░█▓▓▓▓▓▓▓▓▓░▒░▒▒▒█░▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒█▒░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▒▓▒░▓▓▓▓▓▓▓▓▓▓▓▒▒▒▓░▒░░█▒▓▓▓▓▓▓▓▓▓▓▓▒▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░░▓▓▓▓▓▓▓▓▓▒▓░░▒▒▓█▓░░░░▒░░▒░▒▒░▓▒░▒▒█▒░░▓▓▓▓▓▓▓▓▓▓▓▒░█▓░░▓▒█░▒░░▓█▓▓▓▓▓▓▓▓▓▓░▓░▒▒▒▓▓▓▓▓▓▓▓▓▓█▒▓▒▓▒▒▒▒▒█▒▓█▓▒▒█▓▓▓▓▓▓▓▓▓▓░▓▒░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓░▒▓▓▓▓▓▓▓▓▓░▒▒▓▒░▒▒▒█▓▓▓▓▓▓▓▓▓▓▓█░▓▒█▓▒█░▒▒▒▒░▒▒▓░▓

Built with

▓░█▒▓▒▒░░▒▓░▓█░░░▓░▒▓▓▓▓▓▓▓▓▓▓▓▒▓▒▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▓▓░▓░▒▓▓▓▓▓▓▓▓▓▒▓░█▒▒█▓▓▓▓▓▓▓▓▓░░░▓▒██▒▓▓▓▓▓▓▓▓▓▓▒▓░▒▓▓▓▓▓▓▓▓▓░██▓▒░██░▓░░▒▓▓▓▓▓▓▓▓▓▓█░▓▓▓▓▓▓▓▓▓▒▒▓▒▓░░▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▒▓▓▒▓░▒▓▓█▓▒▓▓▓▓▓▓▓▓▓▓▒░░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░▒░▓▒░▓▓▓▓▓▓▓▓▓▓░█░▒▓▓▒█▒▒█▓▓▓▓▓▓▓▓▓█▓█░░▒▒▓░░░▓▒▓▓▒░▒░▓▓░▒█░▓▓▓▓▓▓▓▓▓▓█▒▒░▒░▒▒░▓▓▓░▓░▒░▓▓▓▓▓▓▓▓▓▒░░░▒░█▓▓▓▓▓▓▓▓▓░▒░█▒█░▒▒▓▓░█▒▓▓▒█░▓▓▒▓▒▓░▒▓▓▓▓▓▓▓▓▓▒▒█░█▒▒▒▒▓▒░▓█▒▓█▒▒▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓█▒▓▓▓▓▓▓▓▓▓▒░▒▒▒░▓▓▓▓▓▓▓▓▓▒░▓░▓▓▓▓▓▓▓▓▓▒█▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▒▓░░░▒▓▓░▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▓▒▓▒▒█▒▓▓▓▓▓▓▓▓▓▓░▒▒▓▓░░▒▒▓▓▓▓▓▓▓▓▓▓░▓▓▒█▓▓▓▓▓▓▓▓▓▒▒░▒▒▓▒▓▒█░▓▓▓▓▓▓▓▓▓███░█░▓▓▒▒▓▒▓▓▓▓▓▓▓▓▓▒▓█▓█▒░▓▓▓▓▓▓▓▓▓▒▒▓░░█▓▓▓▓▓▓▓▓▓▓▓░▓█░▓░▒█▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░░▒▓█▒░▓▒░░▓▓▓▓▓▓▓▓▓█░▓▒█▒▒░▒▒▓░▒▒▓▒▓░▓▒▓▒░▓▓▓▓▓▓▓▓▓▓█▒░▒▒▒▒█▒░██▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒▓▒░░█▓▒▓▓▓▓▓▓▓▓▓░▒▓░▓▓▓▓▓▓▓▓▓▒▓▒▓░▒▒▓░▒▓▓▓▓▓▓▓▓▓░▒▒▓▓▒░▓▓▓▓▓▓▓▓▓▒▒▒▒░░░▓▓▓▓▓▓▓▓▓░░█▓▒█░▒▒█░█▓▒░▓▓▓▓▓▓▓▓▓█░▒░▒▓▓▓▓▓▓▓▓▓█░░▓░██▒░██░█░▒███▓░░█░▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓█▓▓▓▓▓▓▓▓▓▒▒▓