SOGo v2.3.17

Enhancements

• [web] allow custom email address to be one of the user's profile (#3551)
• [web] the left column of the attendees editor is resizable (not supported in IE) (#1479, #3667)

Bug fixes

• [eas] make sure we don't sleep for too long when EAS processes need interruption
• [eas] fixed recurring events with timezones for EAS (#3822)
• [eas] improve handling of email folders without a parent
• [eas] never send IMIP reply when the "initiator" is Outlook 2013/2016
• [core] only consider SMTP addresses for AD's proxyAddresses (#3842)