MailBee.NET Queue helps applications send e-mails faster by means of the background delivery. Instead of actual sending, your application can just write all the e-mails as .EML files into a certain folder, and MailBee.NET Queue will do the rest. Internally, Windows service of MailBee.NET Queue monitors that disk folder, picks up all .EML files other applications submit to it, and sends them out through SMTP server. To feed the pickup folder, you can use any tool capable of producing .EML files, including MailBee.NET Objects and MailBee Objects products.