It has been quite a while since Apple moved their customers from @mac.com to @me.com email addresses. However until now, customers were able to send emails from both the @mac.com and @me.com email addresses. But that could cease to exist soon as some MobileMe customers have discovered.
According to one customer, users who have set their MobileMe account after updating to iOS 4.2 may not be able to send emails via the @mac.com address. While users can still sync their @mac.com account details via iTunes, push email no longer appears to be working. Commenting on these changes, an Apple MobileMe support staff has noted,
“your address will be automatically replaced by @me.com. But if someone send you a message to @mac.com you will be able to get the message same if your iPhone is setting up with @me.com”
There is still no word on when the @mac email address shall be turned off completely. We are still awaiting an official response in this regard.