- Make a global pref per user to enable it (bloats the contacts
list)
Both Apple's Mail and Thunderbird have this preference, it would be
the most familiar to a wide range of users.
Any known performance issues that could arise from a bloats contacts
list ?
- Always save them but in a separate "group" and count the number of
mails sent to one recipient in order to find out which are
"supposed to appear in the address book"
I like this, but with an expiry time for entries so the "separate
group" list doesn't get bloated.