Help Center

Fixing the 550 5.7.1 [SHF] Message rejected error

This error indicates that your message has been blocked because we suspect you may be impersonating a legitimate sender inappropriately. You may not use our services to send bulk email impersonating another sender.

If we have made a mistake, please contact support@mailchannels.com for assistance.

Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request

Comments

Please sign in to leave a comment.

Powered by Zendesk