Dilip Menon wrote:
Hi,
I have a question regarding the maximum path length allowed in RCPT TO as
well as MAIL FROM. RFC 2821 says, this limit is 256 bytes.
For e.g. if address is abc(_at_)def(_dot_)com
So if we include the '<' and '>' characters, will the total length be 258.
Or is it 256 inclusive of these characters?
Regards
Dilip Menon
The exact wording in RFC 2821 is:
path
The maximum total length of a reverse-path or forward-path is 256
characters (including the punctuation and element separators).
Reverse-path = Path
Forward-path = Path
Path = "<" [ A-d-l ":" ] Mailbox ">"
A-d-l = At-domain *( "," A-d-l )
; Note that this form, the so-called "source route",
; MUST BE accepted, SHOULD NOT be generated, and SHOULD be
; ignored.
At-domain = "@" domain
The 256 character limit includes the angle brackets, @, local-part, domain(s),
(and in the case of deprecated source routes) commas and colon; those are
included in the definition of "Path" and explicitly referenced in the phrase
"including the punctuation and element separators".