Error opening mailbox: IMAP connection broken

[behinam]

My server Imap not work.
I test this with PHP code and I give this error:
Error opening mailbox: [CLOSED] IMAP connection broken (server response)

my URL is:
- Removed -

I check Firewall and ports and PHP extensions but I can't find any problem.
Does someone have an idea?

 

[behinam]

in my module i see this error:
IMAP method imap_open() failed with error: Certificate failure for mail.xxxxxx.com: Server name does not match certificate: /CN=srv.xxxxxx.com

in Mailbox.php line 878
at Mailbox->imap('open', array('{mail.xxxxxx.com:995/imap/ssl}INBOX', '[email protected]', 'PASSWORD', 0, 0, array()), false, 'PhpImap\\ConnectionException')in Mailbox.php line 148

 

[Infopro]

This thread reads like you're attempting to connect to IMAP via a script, is that correct?

 

[kamm]

It took me a while to figure this out.

Assuming a Let's Encrypt certificate, this worked for me:

$mbox = imap_open("{mail.example.com:993/imap/ssl/novalidate-cert}INBOX", "[email protected]", "PASSWORD");