| Price from | Free | £7.50/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 3 | 3 |
| Spec score · Personal Email Services | 8.8 (#12) | 8.1 (#58) |
| Email aliases | Yes | Yes |
| Email service | AT&T Mail is a free email service for AT&T and supported legacy email accounts. | BT Email provides email addresses ending in @btinternet.com, @btopenworld.com or @talk21.com, with Standard, Premium and Basic account types. |
| Free plan | Yes | Yes |
| Mobile apps | AT&T lists Apple Mail, Outlook Mobile, and Yahoo Mail for supported iOS devices, and Gmail, Outlook Mobile, and Yahoo Mail for supported Android devices. | The BT Email app is available for iOS 16.0 or later and Android 11 or later. |
| Platform access | web_mobile_desktop | web_and_mobile |
| Support | AT&T provides self-service setup, troubleshooting, security, password, and account recovery help, plus support videos. | BT lists UK-based technical support for Standard, Premium and Basic email; Premium support and cancellation are available by phone during stated weekday and weekend hours. |
