Emails getting delayed on Appian Cloud due to Proofpoint filter

Symptoms

Emails sent from Appian Cloud sites are not getting delivered to their destination when customers use Proofpoint as their email spam filtering service.

Cause

Proofpoint might have filtered the IPs Appian mail server uses to send emails.

Action

Appian Cloud uses standard industry practice to send emails hence customers must work with Proofpoint to unblock the Appian IPs they have filtered out.

Affected Versions

This article applies to all versions of Appian Cloud.