To explain I have been using 3 school email addresses for the past few years previously in Hotmail and now the new Outlook.com....

All of a sudden yesterday in Outlook.com I cant send to these 3 addresses all of these end in *** Email address is removed for privacy *** (obviously I cant post the whole address here)....

I received 2 emails from two of these addresses yesterday and when replying I got an undelivered message back....?

Anyone know why this would be - especially when using gmail this am - I sent and received replies back from the schools this morning...?

So it seems outlook.com is the only issue and not the actual address?

Ive looked on forums but cant get an answer to this...?

Can anyone help - as I need really need these addresses working to organise timetables etc.. with teachers....

Many thanks for any help...

James