去SMTP发送电子邮件

I am trying to send an email using Go. however I try to use my host custom mail servers wich are the followings

So I am not quite sure what should I use over here. I am doing the following

auth := smtp.PlainAuth("", "noreply@icon-universe.com", "password", "mail.icon-universe.com")
log.Println(smtp.SendMail("mail.icon-universe.com:25", auth, "noreply@icon-universe.com", []string{"to@gmail.com"}, []byte("This is a simple test")))

However this would give me the following error

x509: certificate is valid for server.premierehost.net, www.server.premierehost.net, not mail.icon-universe.com

So then I tried the following

auth := smtp.PlainAuth("", "noreply@icon-universe.com", "password", "server.premierehost.net")
log.Println(smtp.SendMail("server.premierehost.net:465", auth, "noreply@icon-universe.com", []string{"nakotoffana@gmail.com"}, []byte("thanks for loggin in")))

However this would just make my app go on an infinite loop...

Wich connection details should I use?

--- Update

I decided to try go-mail and seems to work but not for @gmail

d := gomail.NewDialer("server.premierehost.net", 465, "noreply@icon-universe.com", "password")
m := gomail.NewMessage()
m.SetHeader("From", "noreply@icon-universe.com")
m.SetHeader("To", "carvajal@karmagameworks.com")
m.SetHeader("Subject", "Hello!")
m.SetBody("text/html", "Hello <b>Bob</b> and <i>Cora</i>!")
log.Println(d.DialAndSend(m))

This will work and the email will appear but sending to @gmail.com wont (the email will never arrive)

You appear to be using gomail correctly, but you should make sure the email account on gmail you are trying to send from has less secure apps turned on, otherwise this will never actually send.