I have lost contact with an Oz "cousin" after several months of exchanging e-mails etc it has now gone quiet. Assuming I haven't blotted my copybook somehow, it has been suggested that I may have inadvertently blocked e-mails from that source. How do I check this out and rectify it?
It happened to me before and I went into my settings and I had found gmail & hotmail somehow had been blocked so I had to give permission to allow them to come through. Another idea could you give someone else the persons email addy and see if they can contact the person you wish to contact and if they do that is another way to know the email addy is still valid and then you will know that somehow they may have been blocked accidently on your computer.
Or you could ring your ISP and see if they can help.