DeutschA secure connection between two email servers occurs automatically and protects unencrypted mail from unauthorised access. As the user, you don’t have to do anything, all this happens in the background. You can see afterwards in the source text whether the email transport was encrypted.
We regularly undertake tests and the providers that offer automatic encryption are listed here:
| TLS | DANE | ||
| Arcor | yes | no | |
| AOL | yes | no | |
| Bund.de | yes | yes | |
| Comcast | yes | yes | |
| Freenet | yes | yes | |
| Gmail | yes | no | |
| GMX | yes | yes | |
| Kabel Deutschland | yes | yes | |
| O2 | yes | no | |
| Outlook.com | yes | no | |
| Riseup | yes | yes | |
| T-Online | yes | no | |
| Unitymedia | yes | yes | |
| Vodafone | yes | yes | |
| web.de | yes | yes | |
| Yahoo | yes | no |
(As of 25th March 2020)