unencrypted connection

[widon1104]

I use tom mail, go 1.10.2
host: smtp.tom.com
port: 25
d := mail.NewDialer(host, port, from, password)
d.SSL = false

I get "unencrypted connection", I can not send email use this library when use tom mail.

[davleb]

Well, I had exactly this problem a few days ago. "unecrypted connection". This error is linked with the smtp server itself. Smtp server is telling you : "i want you to authentify on a secured port".
It appears that the sysadmin changed the smtp configuration and the port i used ceased to be a valid one.

remove the "d.SSL = false"
Change port from 25 to 465. (port 25 usually is usually for free, non secured, non authenticated smtp).
if not working try port 587.
if not working, your smtp port is non standard, ask the tom.com sysadmin for it.

[deagon]

Change port from 25 to 465. (port 25 usually is usually for free, non secured, non authenticated smtp).

It works in my case.

Thanks a lot. @davleb