BT Sender Email Address Verification
BT has implemented sender email address verification. This means if you use an alternative email address as your From or Reply-To address, you may not be able to send mail through their gateway. Follow the instructions below to resolve this issue.
BT Openworld Home/Residential Accounts
- Set your outgoing SMTP server address to:
mail.btopenworld.com(or the server BT has provided). - Click on the More Settings button.
- Click the Outgoing Server tab.
- Tick the box marked My outgoing server (SMTP) requires authentication.
- Select the option Log on Using.
- Enter your BTOpenworld username and password.
- Tick the Remember Password box and click OK.
BT Business / Broadband Office / Openworld C2B / BtClick / BTConnect Accounts
For business accounts, you will need to apply to BT for relay authorisation. This process ensures that you are the rightful owner of the domain and allows BT to permit email sending.
- Contact BT technical support by telephone or email.
- Request mail sending authorisation for your domain name.
- BT will verify ownership and add your domain to their system (normally within 48 hours).
- You can email dns@btconnect.com or call your normal helpdesk.
- Full instructions are available at: http://btbusiness.custhelp.com
ℹ Note: BT’s verification system is designed to reduce spam and spoofed email.
Always ensure you are using your correct BT-provided SMTP server and authentication details.