VMime is a complete Internet mail library for C++.
It includes a MIME parser/builder module and a
messaging module. The MIME module is a powerful
class library for parsing, generating, or editing
Internet MIME and non-MIME messages. It is
designed to provide a fast and an easy way to
manipulate Internet mail messages. It is fully
object-oriented, cross-platform, and
standards-compliant (with maximum conformance to
RFCs 822, 2045, 2046, and 2047). The messaging
module allows you to connect to mail services
(such as POP3, IMAP, SMTP, and maildir) in a
transparent manner, with a lot of features
supported.
