RFC 2298 Details return receipts
RFC 2342 The IMAP4 NAMESPACE command
RFC 2616 HTTP/1.1
RFC 2683 IMAP4 Implementation Recommendations
RFC 2822 Format of an email message (sendmail)
RFC 2298 Details return receipts
RFC 2342 The IMAP4 NAMESPACE command
RFC 2616 HTTP/1.1
RFC 2683 IMAP4 Implementation Recommendations
RFC 2822 Format of an email message (sendmail)