| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 3 | 1 |
| Spec score · Personal Email Services | 8.8 (#12) | 8.4 (#33) |
| Ad-free inbox | No | Yes |
| Email aliases | Yes | Yes |
| Attachments | A message can include up to 50 files, with a maximum total message size of 25MB. | A message can include files totaling up to 200 MB without a subscription; Mail Space subscribers can send files up to 100 GB. |
| Email service | AT&T Mail is a free email service for AT&T and supported legacy email accounts. | Mail provides email accounts with web access and mobile apps for Android and iOS. |
| Free plan | Yes | Yes |
| 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. | Mail provides a support request form and a support chatbot in MAX. |
