Issue Can't create new Mail Account

[Monolith-Colletiv]

Dear Fellow Pleskians,

I can't add a new Mail Account for a certain The specified email address is already in use
I did a Plesk Repair, didn't work, found an old artikel (Plesk 12) with an KB Article that ended up in a 404.

Can you point me to a way to get this working?
The Mail doesn't work (Not found) and isn't showing up in the Overview.

Appreciate any help

Regards

 

[IgorG]

Please check that Mailing list with the name of your email account exists on the server:

# /usr/lib/mailman/bin/list_lists | grep mailboxname

 

[Monolith-Colletiv]

Tried it with a Mail Account that definitely exists and the one that throught out the error the output is always empty.

root@mail:~# /usr/lib/mailman/bin/list_lists | grep schubert@xxx.tld
root@mail:~# /usr/lib/mailman/bin/list_lists | grep buettner@xxx.tld
root@mail:~#

 

[IgorG]

Do you have this account in the output of the following command:

# plesk db -e 'select concat(mail.mail_name,"@",domains.name) as address from mail,domains,accounts where mail.dom_id=domains.id and mail.account_id=accounts.id order by address'

?

 

[Monolith-Colletiv]

Do you have this account in the output of the following command:

# plesk db -e 'select concat(mail.mail_name,"@",domains.name) as address from mail,domains,accounts where mail.dom_id=domains.id and mail.account_id=accounts.id order by address'

?

No and some Mail Names are missing, got over 200 Mail accounts and it's only showing a fraction of that