Gmail likes its contacts more than yours
Posted by onlydarksets on December 8, 2008
I’ve been running into a problem where Gmail stops auto-suggesting contacts in my Contacts list. Turns out, it’s because it likes its own “Suggested Contacts” better. More to the point, the “Suggested Contacts” are case-sensitive, while the auto-suggest is not, and the auto-suggest pukes on what it perceives to be duplicates.
So, if you have a contact in your Contacts list with the email address “firstname.lastname@example.org”, and they send you an email configured as “FRIEND@hotmail.com”, and you respond to that email, gmail adds the duplicate address to your “Suggested Contacts” list. Then, the next time you try to send them a new email, gmail chokes on the duplicate, and you get nothing.
UPDATE: Looks like Google is working on it.