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Prolateral offers primary and backup domain (DNS) services, with servers in key geographic locations providing the best service possible.

SMTP 4.4.1 Error when sending an email

Problem

SMTP 4.4.1 Error when sending an email, What does it mean?

Solution

SMTP 4.4.1 Error message indicated the recipients host is not responding. This could be due to a temporary issue with thier network or mail server. We recommend resending the email as it's possible the issue is transient. If the email continues to bounce back you should then consider contacting the recipient to update their contact information.

 

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The Origin of this information may be internal or external to Prolateral Consulting Ltd. Prolateral makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Prolateral makes no explicit or implied claims to the validity of this information. Any trademarks referenced in this document are the property of their respective owners.