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firdausi12
New Contributor III

Delay mails

firdausi12_0-1676631081209.png

 

 dsn=4.3.0, stat=Deferred: 451-Sender host (41.78.83.238) not yet authorized to deliver from 451-<neagada@frcnigeria.gov.ng> to <olumide.adeboyejo@procentriciq.com>. Please 451 try again later.

 

Hello Team,

Help someone should explain what this error means.

 

Regards,

Firdausi

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2 REPLIES 2
abelio
SuperUser
SuperUser

Hi,

Nothing serious at first;   4xx error codes are temporaries, and could indicate several causes, i.e. capacity problems,  greylisting , etc

Keep on eye on it and mailqueue, specifically if mail keeps trying or change to a permanent failure  (error codes 5xx)

regards




/ Abel

regards / Abel
firdausi12
New Contributor III

Thank you abelio

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