Hi ,

An API key was removed from your account:

Key ID: 4b98b89f-95ce216e
Description: Key from Oct 15 22:51:58 UTC 2019 migrated on Sep 18 18:49:05 UTC 2023

If you or one of your users did not remove this API key, please contact Mailgun support immediately at help@mailgun.com.

With love,

The Mailgun Team