使用gmail作为SMTP中继器在Windows中以C ++发送邮件

Question

Does anyone know how to send an email with an attachment(txt file) using a gmail as an smtp relayer in windows environment.I have looked at some sample code here but that was for the linux os. So far i could not find any sample code for windows.Help would be appreciated.

Answer 1

Google mail server will only accept secure connection, SSL or TLS. Here are the addresses and ports GMail uses: http://support.google.com/mail/bin/answer.py?hl=en&answer=13287

So, you need to use SSL/TLS-enabled socket like this one: CSslSocket - SSL/TLS enabled CSocket .

Or, if you want to implement SMTP over SSL yourself, using SChannel API , this sample will guide you through: C++ SSPI Schannel TLS example (this shows how to break through SSL and you are to complete with with SMTP plain text conversation sending an email).