x509: certificate is valid for ..., not ...

[BJBigler]

Not sure what I'm doing wrong here. The emails send fine from localhost, but when I move the code to production, I get the error, "x509: certificate is valid for mywebhost.com, not smtp.smtphost.com". I'd sure appreciate any advice or direction.

[crazy-canux]

I got the same problem.
I use python to test the smtp server, it's works.
But with golang, it's not working.
BTW, I don't have authentication for smtp server.

[BJBigler]

In my case, it wasn't the gomail package, but rather a server configuration issue as described here:

https://documentation.cpanel.net/display/68Docs/Tweak+Settings+-+Mail#TweakSettings-Mail-RestrictoutgoingSMTPtoroot,exim,andmailman(FKASMTPTweak)

[pedromorgan]

see #104 and #108

[ghost]

it will only send the credentials if the connection is using TLS
or is connected to localhost. Otherwise authentication will fail with an
error, without sending the credentials.