How do I unblock or prevent blocking of MSN emails while traveling abroad?

What device are you using to access them? If from a smart-phone you have to turn on data roaming. But it could be device specific. iphone? Android?

You should contact them (MSN) and ask. Even if you have no cellular connectivity at all (wifi only) messages generally should get through without regard to your geographic location.

This always happens to us traveling abroad whether using iphones or ipads. Get the MSN Authenticator app. Register each of your email addresses with this App. It will give you a code to unblock your accounts. It is maddening when you get totally blocked, can’t access reservations, TripItPro, etc. . This has happened to us for years, different phones and iPads, whether in Europe, Asia, South America, even in US sometimes too. I keep meaning to change to Gmail. But the Authenticator is a big help.

We always have trouble with MSN abroad - or even when we're traveling in the States. We've set up another account, in gmail, that I use as my authorization account. When MS wants an authorization code, I have them send it to the gmail account, which always lets me in after answering a simple security question. Then I can give MS the code and get into our primary accounts.

Some services are requiring 2 or even 3 step verification, which can be difficult when traveling. If you're using a cell phone as your device, you might be able to get them to text you the authorization code each time.