Settings

Below is a list of settings and important addresses relevant to use of Atlas Hosted Email services that you may need. Note that authentication of a valid email address is required for all services.

Changes to the mail services are catalogued here.

ServiceServerPortNotes
Sending Email (SMTP)smtp.ispmail.uk25STARTSSL is optional, but recommended.
465Requires SSL/TLS
587STARTSSL is optional, but recommended.
Receiving Email (POP3)pop3.ispmail.uk110
995Requires SSL/TLS
Receiving Email (IMAP)imap.ispmail.uk143
993Requires SSL/TLS
Webmailispmail.uk80/443

Please note that for email services that use SSL/TLS, you will need to ensure that your client software supports TLS 1.2 or higher. The following programs are known to support TLS 1.2:

  • Microsoft Outlook 2016 (if all Windows and Office updates are applied)
  • Microsoft Outlook 2019 onwards
  • Mozilla Thunderbird 52.0 onwards
  • Android 5.0 onwards
  • Apple MacOS Sierra 10.12.6 onwards
  • Apple iOS 9 onwards

Email Client Setup Guides