We use two email account providers, Heart Internet and Mythic Beasts. Most Typomania clients are currently use the Heart Internet service.
Heart Internet recently made some changes to their mail servers, and if you've been having problems sending email, you might need to check the following settings relating to your outgoing, SMTP server:
The port number should now be 587, (previously 25)
The encryption method should now be STARTTLS, if available or SSL if not.
Clients using Heart Internet are also advised to use SPF records. If you need help setting one up, please email.