451 Temporary local problem - please try later

[Dipak Bhoi]

Hello folks,

One of our customer was  receiving a below mention error while sending an emails.

Error:

smtp error (451) failed to add recipient
451 Temporary local problem - please try later

If you also facing this issue then don't worry, I have a solution for you. After investigating on this issue, I found domain is using a local mail server to send an emails but there was no entry exist in /etc/localdomains file.

I have removed the entry of domain name from /etc/remotedomains and added under /etc/localdomains and restarted the exim service. That's all that you need to do and emails will work fine. 

Enjoy !!