18 Nov
2005
18 Nov
'05
9:08 p.m.
On 11/17/05, Luke-Jr luke@dashjr.org wrote:
Q. What type of DNS record is associated with email servers a. MX /Mail Exchanger and Reverse DNS (99% will miss Reverse DNS unless they have ran their own mail server)
MX is the answer. "DNS record" is singular. If the Q asked for "records are" then MX, A, PTR and TXT should all be there. Extra points if they explain that MX records should resolve to A records, not CNAME records. Advanced question: "Why is having a MX that points to a CNAME a problem?" Extra points if they know DJB's middle name.