421 Unexpected Failure

If you receive the following message while trying to send emails, the issue could be temporary:

421, response: Unexpected failure, please try later.

However, the following message indicates that there may be problems with the receiving email address:

No action is required on your part. Delivery attempts will continue for some time, and this warning may be repeated at intervals if the message remains undelivered. Eventually the mail delivery software will give up, and when that happens, the message will be returned to you.

If you experience this error every time you attempt to send an email, please contact HostGator via phone or live chat so we can test your email settings.