Features

• SMTP, POP3 and IMAP4 mail protocols
• SSL connections and STARTTLS (supports Gmail, Live.com and other SSL-only mail services), client and server certificates
• Secure authentication (OAuth 2.0, NTLM, GSSAPI, CRAM-MD5, APOP)
• International charsets, UTF-8, automatic codepage conversion, IDN domains
• Events, logging, error codes
• Background execution (does not freeze the user interface in Windows desktop applications)
• Compose, mail-merge and send mail through SMTP server, submit to IIS SMTP queue or MailBee.NET Queue, or send directly to end recipients via DNS MX lookup
• Relay mail from a file
• Custom SMTP commands
• ESMTP authentication
• Import HMTL mail from file (automatically embeds pictures and other related files into the message)
• HTML to plain-text conversion
• Unlimited attachments
• Non-standard body parts (XML, etc)
• Accurate message parser (can decode bad-formatted e-mails)
• MS-TNEF (winmail.dat) decoding
• Custom headers
• Access to the raw MIME source of the message
• S/MIME encrypt/decrypt/sign/verify, certificates, PFX
• Download messages via POP3 entirely or headers-only
• Delete messages via POP3
• Custom POP3 and IMAP commands
• UIDs (Unique-IDs) in POP3 and IMAP (useful to distinguish between new and already downloaded messages)
• Download messages, body parts, envelopes and folders (mailboxes) via IMAP
• Search, upload, delete and expunge messages, manage mailboxes, set and check flags via IMAP
• IMAP IDLE, XLIST, SPECIAL-USE, CHILDREN, MOVE, SORT, QUOTA extensions
• Uploader object to upload files from the web browser to the web server (useful for ASP applications)
• IMAP UTF-7M encoding for mailboxes with international names
• OAuth 2.0 support, including Gmail and Office 365

What's new

Version 9.5

• CertInfo object now supports Status and Win32Status properties to let the developer get the status of S/MIME certificate validation.
• MailBee DLLs are now compiled with Dynamic Base (ASLR) compiler option. This is a security enhancement.
• SMIME object stability improvements and memory leak fixes.
• SMIME object documentation fixes.

Version 9.4

• TLS 1.3 support.

Version 9.3

• OAuth 2.0 support, including Gmail and Office 365

Version 9.2

• Better IPv6 support.
• IMAP4 UIDPLUS extension support (IMAP4.UIDPlusResult property).
• PFX support in SMIME.AddRecipientCert method.
• Improved parsing of email addresses.
• SHA-256 signing in S/MIME.
• 3DES encryption in S/MIME.
• S/MIME signatures with full certificate chain.
• More accurate error handling in S/MIME.
• See History for other changes and details.

Version 9.1

• Support of international e-mail addresses (IDN domains).

Version 9.0.2

• SHA256 signatures to all .DLLs (in addition to SHA1 signatures).

Version 9.0.1

• TLS 1.1/1.2 support.

Version 9.0

• Authenticode signatures for all .DLLs and the installer.
• IMAP MOVE extension support (moving messages).
• IMAP SPECIAL-USE extension support (special mailbox flags).
• IMAP CHILDREN extension support (special mailbox flags).
• IMAP SORT extension support (sorting of search results).
• IMAP UNSEEN response support (message number of the first unseen message in the mailbox).
• IMAP UIDNEXT response support (next predicted UID in the mailbox).
• IMAP STATUS command support (unseen count, message count and other info for a mailbox without selecting it).
• IMAP message sets - arbitrary sequences of message numbers or UIDs (more flexible than ranges, enable doing more actions in a single batch).
• IMAP SetSeenFlag in RetrieveSingleMessage method.
• IMAP QUOTA now returns not only allocated but also occupied space in the mailbox (QuotaUsage property).
• AddressDelimiter property to make it easier to split address strings into individual addresses.
• Filename autogeneration for attachments without filenames. New FilenameAsIs property to get the original filename.
• Samples now reside in My Documents instead of Program Files (eliminates UAC issues when opening sample projects).
• See History for other changes and details.