Prolateral Consulting Ltd
Prolateral Consulting Ltd
Support
Support
Knowledgebase Articles
Help
Setup examples
Support

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

Problem

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

Solution

SMTP 4.4.1 Error message indicates the recipients host is not responding.

This could be due to a temporary issue with thier network or mail server.  Typically the message will sit on the "deferred mail queue" and wait a period of time before trying to deliver the email again.  After several attempts to deliver the email, if not successful the message will fail and generate a postmater delivery failure message to the sender.

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.

 

Start sending with outMail...

An outbound SMTP service you can rely on, with great customer satisfaction.

  • Authenticated SMTP
  • Support for SPF & DKIM

What are you waiting for? Give it a try today.

like it, love it, then share it. Share this article on social media.

Did you enjoy this article?

Disclaimer

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.