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Added note about caddy

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Erik Wramner 2020-05-04 08:01:53 +02:00
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docs/content/config/security/ssl.md
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@ -20,6 +20,26 @@ To enable Let's Encrypt on your mail server, you have to:
You don't have anything else to do. Enjoy.
#### Pitfall with Caddy
If you are using Caddy to renew your certificates, please note that only RSA certificates work. Read [issue 1440](https://github.com/tomav/docker-mailserver/issues/1440) for details. In short the caddy file should look something like:
```
https://mail.domain.com {
tls yourcurrentemail@gmail.com {
key_type rsa2048
}
}
```
EC certificates fail in the TLS handshake:
```
CONNECTED(00000003)
140342221178112:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:ssl/record/rec_layer_s3.c:1543:SSL alert number 40
no peer certificate available
No client certificate CA names sent
```
#### Example using docker for letsencrypt
Make a directory to store your letsencrypt logs and configs.