I have been using Subscribe2 successfully until end Dec2012. At this point, email notifications (of new blog posts) stopped being received by subscribers with gmail email accounts.
After reading on the forum, I changed the setting for emails from 0 to 1, but this doesn't seem to have solved the problem.
I am not sure if the problem sits with gmail (who may be restricting the domain) but then I thought I'd receive a delivery error? This has been the case with other email service providers.
Not sure if anyone else has the same problem?
Any help would be most welcome!