Shared Mail Bagging with SpamWeeder Premium public MX records:
MOST RECENT - ALL CLIENTS SHOULD UPDATE TO THESE MX RECORDS BEFORE 4/30/21:
mxc1.mailshelter.com
mxc2.mailshelter.com
mxc3.mailshelter.com
mxc4.mailshelter.com
OLDER - PRIOR TO 3/22/21
mx1.mailshelter.com
mx2.mailshelter.com
mx3.mailshelter.com
mx4.mailshelter.com
