It is possible to send emails through the send email function of MemberGate from a specific name as opposed to your email address.
1. Under 'Master Settings' choose 'eMail Settings'
2. In the 'Webmaster Email Address' form field enter
Joe Emailsender <email@example.com>
(Substitute whichever name the email coming from for Joe Emailsender)
The recipients of the email will receive the email from Joe Emailsender.