[BlueOnyx:26513] LetsEncrypt! SSL error when receiving mail from GMAIL

[Ceelie, Arie (VodafoneZiggo)]

Hi Michael,

Seems I was to hasty. When trying openssl s_client -starttls smtp -connect <servername>:<port>
There is something happening. But,

CONNECTED(00000003)
depth=0 C = NL, L = Leiden, O = Ceelie, CN = mail.ceelie.info, emailAddress = elpadre at ceelie.info
verify error:num=18:self signed certificate
verify return:1
depth=0 C = NL, L = Leiden, O = Ceelie, CN = mail.ceelie.info, emailAddress = elpadre at ceelie.info
verify return:1
---
Certificate chain
 0 s:C = NL, L = Leiden, O = Ceelie, CN = mail.ceelie.info, emailAddress = elpadre at ceelie.info
   i:C = NL, L = Leiden, O = Ceelie, CN = mail.ceelie.info, emailAddress = elpadre at ceelie.info

and

---
SSL handshake has read 2438 bytes and written 464 bytes
Verification error: self signed certificate
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 4096 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 18 (self signed certificate)

It seems to just hang on to the self-signed cert. How to remove this?
Regards,

Arie


C2 VodafoneZiggo Internal
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