Marketing Cloud | Sends failing due to IP reset message
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Marketing Cloud | Sends failing due to IP reset message

Marketing Cloud Email Studio

Last updated 2022-10-24 ·Reference W-10119047 ·Reported By 26 users

In Review

Summary
Very infrequently an error message can be thrown in association to a send: ExactTarget.OMM.OMMWarningException: An error occurred when attempting to send the subscriber email to the MTA. Only one of these errors will be logged per batch. The MTA connection is being reset and the injection will be retried.

Sends can fail or be temporarily delayed due to this behavior.

Repro
1. Send a significant amount of email
2. Intermittently encounter this

Workaround
Retry sending/restart sends.

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