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Clamd SMTP 451

Posted: Tue Mar 10, 2020 3:14 pm
by desarrollo33
I own a server running 2 websites.

I can't send or receive emails, give me this message:

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Error SMTP: [451] Temporary local problem - please try later
When i comment etc/exim/exim.conf

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#CLAMD = yes
then i can send and receive, but the emails are spam, and I don't think it's very good to remove this antivirus.

I try to update clamd

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yum update clamav
and

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freshclam
Also try update the host for each web domain, for the ssl

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v-update-host-certificate user domain
Any idea?

Re: Clamd SMTP 451

Posted: Wed Mar 11, 2020 8:32 am
by desarrollo33
I do this for each website

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v-update-host-certificate user user_web_domain
But the mail still spam and in thunderbird says certificate is not secure

In this test (https://www.checktls.com/TestReceiver) give me this:

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Cert Hostname DOES NOT VERIFY (mail.website.com != website.com | DNS:website.com | DNS:website.com)
So email is encrypted but the host is not verified

Re: Clamd SMTP 451

Posted: Thu Mar 12, 2020 11:27 am
by desarrollo33
I think the issue is the DKIM, i have a record txt in Vesta but, here says is not valid http://www.mail-tester.com/spf-dkim-check