Why am I unable to send an email to a large group?

The DMTS email servers will only accept email messages containing a maximum of 100 email addresses. If an email contains more than 100 recipients, the email will not be sent and the sender will receive a ‘return to sender’ message in their inbox.

If you or your business frequently sends email to more than 100 email addresses at one time, it is recommended that you utilize an ’email direct mail’ software program. Most of these email programs are not affected by the 100 recipient limits because they send the message out individually to each person on the mailing list, rather than one email with 100 recipients.