GemBox.Email supports all standard protocols: POP3, IMAP4v1 and SMTP. Messages are represented by simple MailMessage model which wraps around more complex MIME model. MIME model classes can be found in GemBox.Email.Mime namespace.
Following is a more detailed list of GemBox.Email features.
Create mail message with attachments and multi-format message body.
Save and load mail messages to and from a MSG/EML/MHTML/Mbox file or a stream.
Modify mail message headers using advanced MIME model.
Create and send complex mail messages using SMTP protocol.
List and modify folders using IMAP protocol.
List and modify folders on the Exchange Server using the EWS protocol.
Validate mail addresses.
Create calendar events, tasks, reminders and add them to an email.