Am 13.03.2013 14:52, schrieb info@crearefoundation.nl:
We are experiencing a big problem when sending mass emails. We are sending 500 e mails daily and we noticed that after the 1st 100 e mails
all the rest of e mails are returning to sender
and how is this roundcubes problem? WTF it is only a mail-CLIENT
call the support of your ISP or sysadmin and not