Gmail, suddenly: TLS Negotiation failed, the certificate doesn't match the host

Posted by tigger_please on Wednesday April 08, 2020 @03:31PM
from the support.google.com dept.

https://support.google.com/mail/thread/38336515

( 4 comments | 7 points | on HN )

Re:Gmail, suddenly: TLS Negotiation failed, the certificate ... by chkal on Thursday April 09, 2020 @11:46AM (#22823651)

Looks like Google is now validating the TLS certificate received from the mailserver. So the hostname of the SMTP server provided in the GMail settings has to match the certificate provided by the server. I just updated the hostname in GMail and the problem is fixed now!

[ Parent | on HN ]

Re:Gmail, suddenly: TLS Negotiation failed, the certificate ... by yetkind on Thursday April 09, 2020 @01:50PM (#22825258)

Yeah I also have similar problem, how did you solved it (

[ Parent | on HN ]

Re:Gmail, suddenly: TLS Negotiation failed, the certificate ... by marciokoko on Thursday April 09, 2020 @12:24PM (#22824099)

So for godaddy, where the securesever.net domain is on the tls certificate, how do i configure my outgoing which used to be mydomain.com but now fails?

[ Parent | on HN ]

Re:Gmail, suddenly: TLS Negotiation failed, the certificate ... by tigger_please on Thursday April 09, 2020 @12:48PM (#22824473)

My cert, and many others mentioned on that thread, have the proper CN. It is self-signed. Gmail seems to be randomly and intermittently rejecting it.

[ Parent | on HN ]