Did you confirm that the addresses are properly formatted? Gmail is not a list manager. You should look into something like PHPList<http://www.phplist.com/details> .
On Sat, Mar 30, 2013 at 5:59 PM, RenaissanceMensClub < renaissancemensc...@gmail.com> wrote: > I do mailings to about 550 members of our club using gmail. I always use > bcc so the addresses aren't listed. > All of a sudden, after 6 years, I am getting a window that list a bunch of > addresses as improperly formatted, and the email won't send. How come? > > -- > You received this message because you are subscribed to the Google Groups > "Gmail-Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to gmail-users+unsubscr...@googlegroups.com. > To post to this group, send email to gmail-users@googlegroups.com. > Visit this group at http://groups.google.com/group/gmail-users?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- Marko -- You received this message because you are subscribed to the Google Groups "Gmail-Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to gmail-users+unsubscr...@googlegroups.com. To post to this group, send email to gmail-users@googlegroups.com. Visit this group at http://groups.google.com/group/gmail-users?hl=en. For more options, visit https://groups.google.com/groups/opt_out.