Hello,
What acme implementation do you use for your letsencrypt certificates? If it's acme.sh how do you get both rsa and ecc certificates? What configuration options are you using in your configuration of services to allow access to both rsa and ecc?
Thanks. Dave.
On 7/30/18, David Mehler dave.mehler@gmail.com wrote:
Hello,
The client in question is the latest version of AquaMail running on android.
Thanks. Dave.
On 7/30/18, Aki Tuomi aki.tuomi@dovecot.fi wrote:
You should, in practice, enable both. This gives best client compability. It is possible you have clients that cannot understand ECC certificates? You can use ssl_alt_cert to provide RSA cert too.
Aki
On 30 July 2018 at 20:05 David Mehler dave.mehler@gmail.com wrote:
Hi,
Thanks, good news is that worked. Bad news is it all looks good which means I do not know hwhy my remote clients can't get their email, looked like from the logs it was that.
Would 143 be better or 993 for the external clients?
Thanks. Dave.
On 7/30/18, Aki Tuomi aki.tuomi@dovecot.fi wrote:
On 30 July 2018 at 19:16 David Mehler dave.mehler@gmail.com wrote:
Hello,
Does dovecot 2.3.x have any issues recognizing or using certificates that are ECC and wildcard? I'm trying to switch my letsencrypt implementation from acme-client which does not support either of those capabilities to acme.sh which does. Since then external clients checking their email has not worked. A manual telnet to mail.example.com 993 gives a connected message but then nothing no greeting or capabilities.
The certificate is for example.com with an alt name of *.example.com if that's not right let me know, i'm not sure about that one, connecting to the web sites of these pages seems noticeably slower, I'm wondering if both of these issues aren't key related?
Thanks. Dave.
These both should be fine.
Port 993 is TLS encrypted, you should use openssl s_client -connect server:993
Aki