List Quality Check

You have no lists. To create a list click here

Select Page

4.4.4

Delayed Message: email routing issue due to network

The email message has not yet been delivered because network problems with the recipient's email provider limit routing this message.

Fixes

Try waiting a bit since the receiving mail server is busy. Also, double check the recipient's email address when sending again..

If this error continues, consider contacting the recipient through an alternative email address or other means.

4.4.4: Official Definition

4.X.X

[RFC3463] (Standards Track) from the The Internet Engineering Task Force (IETF) definition for codes that start with 4.X.X:

A persistent transient failure is one in which the message as sent is valid, but persistence of some temporary condition has caused abandonment or delay of attempts to send the message. If this code accompanies a delivery failure report, sending in the future may be successful.

X.X.X

[RFC3463] (Standards Track) from the The Internet Engineering Task Force (IETF) definition for codes that end with X.X.X:

The mail system was unable to determine the next hop for the message because the necessary routing information was unavailable from the directory server. This is useful for both permanent and persistent transient errors. A DNS lookup returning only an SOA (Start of Administration) record for a domain name is one example of the unable to route error.

Assess

Sender Score

Sender Score

The original. Monitor your sender reputation.

Sender Score

Blocklist Lookups

See if you’re on the Return Path Blocklist.

Sender Score

List Quality Checks

Upload your list to see if your contacts are legit.

Sender Score

Deliverability Benchmarks

Compare your stats to the global email community.

Sender Score

Email Revenue Calculator

See the revenue potential of your email campaigns.

Sender Score

Bounce Lookups

Find out why are your emails bouncing.

Learn

Sender Score

Podcasts

See what's new and what’s next in the world of email.

Sender Score

Courses

Deepen your sending knowledge.

Sender Score

Email Insights

Curated learnings and hot tips from the email community.

Act

Sender Score

Subscriber List Analyzer

See a breakdown of your subscribers’ mailbox providers.

Sender Score

Subject Line Previewer

See how your subject line will appear in the inbox.

Sender Score

Complaint Monitor

Sign up to receive your complaint data.

Sender Score

Blocklist Remover

Improved your sending behavior? Ask to be removed from the Return Path Blocklist.