libCurl for SMTP

Question

Anyone know how to use libCurl for email transfer ? There's example code on their site, but the operations are not explained.

Answer 1

curl --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
--mail-from '[e-mail]' --mail-rcpt '[e-mail]' \
--upload-file mail.txt --user '[e-mail]:password' --insecure

mail.txt file contents:-

From: "User Name" <[e-mail]>
To: "John Smith" <[e-mail]>
Subject: This is a test

Hi John,
I’m sending this mail with curl thru my gmail account.
Bye!