Email (short for electronic mail; alternatively spelled e-mail) is a method of transmitting and receiving messages using electronic devices. It was conceived...

signature of headers and body The most relevant ones are b for the actual digital signature of the contents (headers and body) of the mail message, bh...

allowing header inspection. See table at Email client#Port numbers Bill Cole (29 June 2009). "What are the IPs that sends mail for a domain?". ASRG mailing list...

e-mail and Usenet News in the same client. These headers are not standardized for use in Internet e-mail and should be handled with caution by e-mail...

generate random addresses, to insert fraudulent headers into messages, to use dozens or hundreds of mail servers simultaneously, and to make use of open...

archived, but also their related metadata, timestamps, headers that define topics, etc. Mailing lists archives are a unique opportunity for historians...

at the end of the RCPT TO: command (e.g.: RCPT TO:<> NOTIFY=SUCCESS, DELAY) and the MAIL FROM: command (e.g.: MAIL FROM:<> RET=HDRS). Some email marketing...

header in Wiktionary, the free dictionary. Header may refer to: Header (computing), supplemental data at the beginning of a data block E-mail header HTTP...

delivery goals. The addresses found in the header fields of an email message are not directly used by mail exchanges to deliver the message. An email...

mail server signals that it has problems with either of these items, the sending system sends the "DATA" command, and typically sends several header items...