Checking mail domains
- As you know, Xenu checks the domains of mail addresses. Recently I read
this while doing the same for a java application (not Xenu related):
"One thing to remember about this approach is the some companies write
to you from a domain that has no MX record. I think Fidelity
Investments does this (or did). Consequently if a spam test is based on
a MX record not existing you may get a unwanted false positives. Better
to also include a test for an 'A' record. By doing this you are
effectively rejecting falsified hosts."
I tried with fidelity.com but they have MX records. Is there anyone here
who knows a host that accepts mail, but has no MX record?