better threading for messages
Have the webmail pro use the sent folder to find and use messages to complete threading like all other programs.
Yes that can be done for a specific mailserver, such as, for our MailSuite Pro bundle: https://afterlogic.com/mailsuite/linux-email-server
In case of an external IMAP server, gathering mails across folders doesn't look feasible performance-wise. If you're looking for a custom development, for your specific mail server, please let us know: http://afterlogic.works
are you able to
create this feature?
Thing is, those are actually email services, not webmail apps you can install with any mailserver at all. And in other standalone webmail clients, we didn't see such a behavior you've described.
talking like gmail.com threading and outlook.com threading. I have that option enabled and threading but it still doesnt seem to work. And my email server is setup with threading available.
When speaking of other programs, do you mean other webmail applications? It works rather different for desktop applications.
Also, WebMail Pro offers an option to save sent mail to Inbox - which actually makes threading more complete.