SMTP Error (451): Failed to add recipient "email" (Temporary local problem - please try later).

Here is the steps to follow :-

1. run /scripts/mailperm --force after that run /scripts/updateuserdomains

2. also can run /scripts/forcelocaldomain domain.com (this will write the domain.com to /etc/localdomains file)

3. manually add the domain to /etc/localdomains file

NOTE : Please ensure the domain is in /etc/localdomains file.
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