Hi, Up to previous version (TB 101), I could send emails to any group from my MacOSX contact list which appeared in send field and I used this all the time to select mailing lists. Now the send to a group fills automatically like before, but sending fails with message "groupname <grouname> is not a valid address" Maybe, if it cannot be fixed soon, and the new address book does not feature MacOSX group sending I wsih to get back to previous version of TB where it worked fine. I attach screen captures, my version of TB is in french language Thank you