Hector Santos wrote: > Per x822, Sender: is OPTIONAL and not a network required > control header. It is more information than anything else.
We are not reading the same copy of 2822upd. | If the originator of the message can be indicated by a | single mailbox and the author and transmitter are identical, | the "Sender:" field SHOULD NOT be used. Otherwise, both | fields SHOULD appear. | | Note: The transmitter information is always present. The | absence of the "Sender:" field is sometimes mistakenly | taken to mean that the agent responsible for transmission | of the message has not been specified. This absence merely | means that the transmitter is identical to the author and | is therefore not redundantly placed into the "Sender:" | field. > Furthermore, not everyone supports Sender: unlike From: > which is a requirement. A Sender is recommended (SHOULD) when it is not redundant, and it is required (MUST) for more than one author: | sender | 0* | 1 | MUST occur with multi-address from Your claim that Sender is "OPTIONAL" per x822 is wrong. > Per x822, Sender: is OPTIONAL and not a network required > control header. Two wrongs don't make this right. With wrong premises your conclusions can be anything you wish. Frank _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
