Contacts - Where to edit and problem with ',' names LDAP


Hi, the automated complementation of E-mails is a great feature.
However: Where can I edit the contacts?
The sending of E-mails fails is one name in the list contains a ‘,’ (comma). Having the E-mail already in the Outbox makes it necessary to erase the Draft and to write a new one. Up to now, I send the E-mails with ‘,’ names from a different client. LDAP support would be great (for the wishlist ;-)).
Best regards, Robert