XF 1.5 IMAP Server Error

[Freelancer]

From time to time I have this Server Error repeating to appear...

What does it mean exactly? I see an eMail problem, but what is it exactly?

Server Error Log
Error Info
Zend_Mail_Protocol_Exception: cannot connect to host; error = (errno = 0 ) - library/Zend/Mail/Protocol/Imap.php:100
Generated By: Unknown Account, 3 minutes ago
Stack Trace
#0 /var/www/clients/client180/web812/web/library/Zend/Mail/Storage/Imap.php(273): Zend_Mail_Protocol_Imap->connect('mail.xxxxxxxxx...', 993, 'SSL')
#1 /var/www/clients/client180/web812/web/library/XenForo/Model/EmailBounce.php(292): Zend_Mail_Storage_Imap->__construct(Array)
#2 /var/www/clients/client180/web812/web/library/XenForo/Deferred/EmailBounce.php(19): XenForo_Model_EmailBounce->openBounceHandlerConnection()
#3 /var/www/clients/client180/web812/web/library/XenForo/Model/Deferred.php(295): XenForo_Deferred_EmailBounce->execute(Array, Array, 7.9999988079071, '')
#4 /var/www/clients/client180/web812/web/library/XenForo/Model/Deferred.php(429): XenForo_Model_Deferred->runDeferred(Array, 7.9999988079071, '', false)
#5 /var/www/clients/client180/web812/web/library/XenForo/Model/Deferred.php(374): XenForo_Model_Deferred->_runInternal(Array, NULL, '', false)
#6 /var/www/clients/client180/web812/web/deferred.php(23): XenForo_Model_Deferred->run(false)
#7 {main}
Request State
array(3) {
  ["url"] => string(44) "https://www.xxxxxxxxxxxxxxxxxxxx.com/deferred.php"
  ["_GET"] => array(0) {
  }
  ["_POST"] => array(4) {
    ["_xfRequestUri"] => string(1) "/"
    ["_xfNoRedirect"] => string(1) "1"
    ["_xfToken"] => string(8) "********"
    ["_xfResponseType"] => string(4) "json"
  }
}

 

[Paul B]

It indicates a (temporary) problem with your server connecting to the SMTP server.

If it is occasional and sporadic then it is likely due to temporary network or server issues.

 

[Freelancer]

Yes it is occasional and sporadic. I think the server has timeouts sometimes. I will contact the hosting provider. Thank you!