I`ve recently had a website built, and as of last week my 123-reg email client is not receiving any emails sent directly through the website, although i can send & receive mail using other accounts
I got in touch with the developer, and he has tryed modifying the contact form but to no avail, he has told me that my ip is blacklisted, and i need to get in touch with my service provider,

I have done this and now have a different ip, but the problem still remains, any help on this would be appreciated thanks