Java class library to work with SMTP, MIME, POP3, IMAP, HTTP, electronic Mail (eMail) in PST, MSG, OST, EML, etc. Supports iCalendar, Validation, & security....SMTP, POP3, IMAP, Exchange server. Works with Thunderbird, Zimbra...Windows: Windows Desktop & Server (x86, x64) macOS: Mac OS X...