MX Records
| in1-smtp.messagingengine.com | Priority = 10 |
| in2-smtp.messagingengine.com | Priority = 20 |
Delete any other MX Records if present.
CNAME Records
| fm1._domainkey | fm1.yourdomainname.com.dkim.fmhosted.com |
| fm2._domainkey | fm2.yourdomainname.com.dkim.fmhosted.com |
| fm3._domainkey | fm3.yourdomainname.com.dkim.fmhosted.com |
TXT Record
v=spf1 include:spf.messagingengine.com ?all