sent activation mail never arrives


Valued Member
Hi all, I have re installed my OP system and with it Windows Live Mail.
The mail prog is pop.myemailaddress@,,,, and the ports are 25 and 110

The mail program seems to be working ok as I get mail from different sources, the problem is when I register with a web site (3 so far) they send a mail link which needs clicking on to activate the account, but the mail never comes and so the accounts are not activated and I cannot login to use the site.
Any ideas most welcome, regards Robert.