I have just set up a new SBS2011 server, it is using the ISP smarthost to send mail. Normal sending of mail works fine, but one of our users has a blackberry which rather than setting up BES for 1 user, we wanted to forward on any emails to the blackberry email address.
I set up a forwarder through exchange to forward all emails sent to firstname.lastname@example.org to email@example.com and ticked leave a copy in mailbox. Upon testing this we kept getting bouncebacks saying:
antispam3.c0bise7.blackberry rejected your message to the following email addresses:
gave this error
#5.7.1 your access to submit messages to this email system has been rejected
delivery has failed to these recipients or groups: firstname.lastname@example.org
and then i created another send connector for the blackberry address which then came up with this error:
a problem occurred during the delivery of this message to this email address, try sending this message again.
the following organisation rejected your message: mail.btconnect.com