C++ lib for email

[henry1999sg]

Anyone could recommend some good commercial email library ?
We can't use open-source lib.
Basically I need send email with attached files via smtp.
Thanks

[minime]

For SMTP surely you would just open a socket and send the text for the email, should be fairly simple.
Read up on how emails are sent and should be easy to code, I made one as part of a project at college.

Only difficult(ish) bit would be converting binary files into email encoded text but even that should be easy enough to find on net.