Resolved Incoming mail on one subscription/domain stuck in mail queue

[Freshlinx]

Since my VPS at Heart Internet failed (and incidentally they lost everything), I have been trying to reconfigure a fresh installation of Plesk Onyx. Apart from a nightmare trying to get certificates to play nicely (I will open a separate thread), one of my domain's email accounts is faulty. I can send emails both through the roundcube webmail and through IMAP on Apple Mail. But all incoming mail to the email account just gets stuck as deferred mail in the Mail Queue in Plesk's Mail Server Settings panel.

Could anyone tell me if they have experienced this? My client cannot currently recieve emails as they stay stuck in the Mail Queue...

 

[Bitpalast]

What are the exact /var/maillog error messages on the mails or the exact "deferred" messages that a sender sees when he tries to send a mail to the target address?

 

[Freshlinx]

Hi Thanks for your reply. I seem to have fixed it by logging in by ssh and running

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