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Allow sender without @domain
Posted: 2023-04-07 13:32
by tanaki
Hello,
I am looking for solution how to allow hmailserver to accept messages with "MAIL FROM:" missing the domain part ( te "@...." part). Also if such message arrives I want to be able to append a domain part.
I tried catching the event "OnClientConnect" , but no message header is available. The event "OnSMTPData" doesn't work as well , because hmailserver SMTPD closes session before calling it.
Any suggestions are welcome.
Thanks
Re: Allow sender without @domain
Posted: 2023-04-07 14:46
by SorenR
tanaki wrote: ↑2023-04-07 13:32
Hello,
I am looking for solution how to allow hmailserver to accept messages with "MAIL FROM:" missing the domain part ( te "@...." part). Also if such message arrives I want to be able to append a domain part.
I tried catching the event "OnClientConnect" , but no message header is available. The event "OnSMTPData" doesn't work as well , because hmailserver SMTPD closes session before calling it.
Any suggestions are welcome.
Thanks
In which case would "MAIL FROM: <JOHN_DOE>" be true?
RFC say:
Code: Select all
"MAIL FROM:" ("<>" / Reverse-Path) [SP Mail-parameters] CRLF
And "Reverse-Path" is defined by:
Code: Select all
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
Mail-parameters = esmtp-param *(SP esmtp-param)
Rcpt-parameters = esmtp-param *(SP esmtp-param)
esmtp-param = esmtp-keyword ["=" esmtp-value]
esmtp-keyword = (ALPHA / DIGIT) *(ALPHA / DIGIT / "-")
esmtp-value = 1*(%d33-60 / %d62-127)
; any CHAR excluding "=", SP, and control characters
Keyword = Ldh-str
Argument = Atom
Domain = (sub-domain 1*("." sub-domain)) / address-literal
sub-domain = Let-dig [Ldh-str]
address-literal = "[" IPv4-address-literal /
IPv6-address-literal /
General-address-literal "]"
Mailbox = Local-part "@" Domain
Local-part = Dot-string / Quoted-string
; MAY be case-sensitive
Dot-string = Atom *("." Atom)
Atom = 1*atext
Quoted-string = DQUOTE *qcontent DQUOTE
String = Atom / Quoted-string
Re: Allow sender without @domain
Posted: 2023-04-11 02:44
by mattg
tanaki wrote: ↑2023-04-07 13:32
Also if such message arrives I want to be able to append a domain part.
How will you know the domain to append?
Does the GUI switch 'allow empty sender address' in SMTP >> RFC compliance achieve what you want?
If you are talking about client connections to the SMTP server for OUTGOING mail, what you need to set is the 'default domain' on the advanced tab