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check the permissions and ownership of sendmail folder under /usr/lib After fixing it, its worked for me.


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Sounds like you've suffered some sort of soft disk failure that has triggered a check/rebuild of the disks and that failure corrupted part of the dovecot installation. I would also: If possible, check the S.M.A.R.T. performance/health counters for your disks, there might be a catastrophic hardware failure imminent Verify the files of other packages using ...


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Reinstalling dovecot packet fixed the problem: # yum reinstall dovecot # service dovecot restart Update: smart doesn't report any error.


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"I didn't test it enough" -everyone I had it in my answer, I am being rejected by Gmail, why though? I'll tell you. It is because I have no MX record at all. I am not coming from a DNS server, but I can fix this by contacting Linode (the hosting service for this project). I will not bother as I do not need to send to anyone but my own exchange for the ...


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Your sendmail is listening ONLY on local/loopback interface (127.0.0.1). It makes sendmail unable to receive/accept connection from outside without "help" (e.g. redirects in iptables).


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I like @Law29's response and will likely choose it as the best answer for this question. That being said, in case someone else stumbles across this post, here's the authoritative answer from the bat book: SIGTERM Cleanup and exit sendmail signal. Whenever sendmail gets a SIGTERM signal (as would be the case if the system were being shut ...


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Sendmail and all other properly written MTAs are written so that there are are only two possibilities: the message is first written to disk and then acknowledged to the sending MTA the message is not acknowledged With this method, there are three outcomes in case an error occurs: The error occurs before the receiving sendmail has tried to acknowledge ...


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https://support.google.com/a/answer/3726730?hl=en 450, "4.2.1" The user you are trying to contact is receiving mail too quickly. Please resend your message at a later time. If the user is able to receive mail at that time, your message will be delivered. For more information, review this article. 450, "4.2.1", The user you are trying to contact is ...



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