Questions about mxrecords (24 hours propagation period)
If I change my MX record, i have to wait 24 hours approx before the DNDS cache is updated around the world...
. If someone tries to send me an email, while my mxrecord is still pointing to my old adress, what happens to the email? Will it bounce?
What if the a certain mail server Qqeue timeout is set to like 12 hours before sending an NDR?