What do I have to do, so mail.app displays names of senders correctly?
Sometimes, I receive mail, displaying the sender as "paul_jkll167@123.com", despite Paul is already saved as a proper contact in addressbook.app.
When sorting my inbox after contact, I see also the same sender displayed with different names:
Paul is displayed as "123, Paul" and as "paul_jkll167@123.com", which makes looking for an specific mail from Paul a nuisance in time with a lot of scrolling.
Sometimes, I receive mail, displaying the sender as "paul_jkll167@123.com", despite Paul is already saved as a proper contact in addressbook.app.
When sorting my inbox after contact, I see also the same sender displayed with different names:
Paul is displayed as "123, Paul" and as "paul_jkll167@123.com", which makes looking for an specific mail from Paul a nuisance in time with a lot of scrolling.