I have configured email account like below...
Email Address: [email protected]
Display Name: Test Store
port: 587 or 25
user: [email protected]
Use default credential: False
In both installed version (4.20 and 4.30) ssl certificate was installed at server but later I have delete or uninstall that.
From installed version 4.20 I can send test email successfully using both port 25 and 587.
But while going to send email from installed version 4.30 it fails and shows error like below..
An error occurred while attempting to establish an SSL or TLS connection. This usually means that the SSL certificate presented by the server is not trusted by the system for one or more of the following reasons: 1. The server is using a self-signed certificate which cannot be verified. 2. The local system is missing a Root or Intermediate certificate needed to verify the server's certificate. 3. A Certificate Authority CRL server for one or more of the certificates in the chain is temporarily unavailable. 4. The certificate presented by the server is expired or invalid. It is also possible that the set of SSL/TLS protocols supported by the client and server do not match. See https://github.com/jstedfast/MailKit/blob/master/FAQ.md#SslHandshakeException for possible solutions.
Could not understand what wrong I have done.
Please help if anyone face this issue.