I still cannot send any messages to lists that are pre-existing. I still get the error:
- SMTP Error (550): Failed to add recipient "[email protected]" (5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table).
I do not have very many subscribers, so I just deleted my lists, recreated them, and I have no issues that I can see now. Just sending an fyi to inform of the persistent issue for existing lists .. Some people with big lists may not have it so easy to recreate their lists.
System Details
Debian GNU/Linux 8.8 (jessie)
PHP Ver: 5.6.30 (Default)
MYSQL Ver: 5.7.17
FPM/FastCGI
Vsftpd Ver: 3.0.2
i-MSCP 1.4.6 | Build: 20170616| Codename: ZImmer
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Mailgraph - Ver. 1.1.1
Mailman - Ver. 2.0.1
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PhpSwitcher - Ver. 3.0.6
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Postgrey - Ver. 1.1.1
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