[FIX] SMTP Error (451): Failed to add recipient "email@example.com" (Temporary local problem - please Topic is solved

[openVZvsKVM]

This is Fix Solution for: SMTP Error (451): Failed to add recipient "email@example.com" (Temporary local problem - please try later).

My server Operating System: Centos 7.8

Problem with Exim and this Problem come after update exim on CentOS 7

Solution: simply Downgrade Exim Updated version to compatible version

$ wget https://github.com/KashifHK123/server-f ... x86_64.rpm
$ rpm -Uvh --oldpackage exim-4.93-3.el7.x86_64.rpm

Note: Please Copy Full URL instead ... in url , or copy below command with short url

$ wget https://git.io/JJjHP
$ rpm -Uvh --oldpackage exim-4.93-3.el7.x86_64.rpm

[marcel]

Hi!

Unfortunately, I was not able to apply this fix. The console returns an error saying "open of exim... failed: no such file or directory.

I checked the repo and the file is actually there.

Please help.

[baijianpeng]

Solution: simply Downgrade Exim Updated version to compatible version

Thank you, this worked for me! Now my SMTP server works again.

[nmpribeiro]

Exim downgrade also worked for me.

However, shouldn't we understand the problem and fix it for newer versions of exim? It will be a bit annoying to go around avoiding updating exim every time we update the system.

[abeykp]

I was also having 451 temporary local problem when trying to send mail using smtp . Downgrade worked for me on centos 7

[peterb]

I agree with @nmpribeiro
we should understand this!

ALSO while I can add to the email queue using roundcube in 4.9.3
my exim queue is stuck

saying
remote deliveries suppressed

[fatih4148]

Worked for me. Thank you very much!
Exim 4.94 wasn't signing the mails using DKIM, 4.93 does.

[lex0013]

Put more votes, more votes = more chances that someone will help.

https://stackoverflow.com/questions/651 ... s-an-error