abhishek singh schrieb:
Do not top-post please.
yes i am using SMTP Authentication , but when i m
doing telnet to my server on 25 port so i am able to
send mail by unknow user that in in not my mail server
like
mail from: <abs@xxxxxxxxxx>
The syntax isn't correct: there has to be no space in between
MAIL FROM:<abs@xxxxxxxxxx>
this command is showing Sender is ok while its not
user in my mail server.after that
rcpt to: <xyz@xxxxxxxxxx>
DATA
jhsjhdf
.
quit
after this mail is queued for delivery to xyz user and
in this scenario xyz is valid user accound on my mail
server so i want that unkown account for my domain
cant sendmail , so how i will do that ,
when i am sending mail to out side domain without
authentication then everything is ok means any one can
send mail to my domain while he is not user.
That makes no sense.
this is the problem.
I do not see "the problem" from above statement. Just understand your
question about avoiding to receive mail from faked senders (see below).
i have one solution , but i want to know very easy
way to do that
http://www.sendmail.org/~ca/email/fake.html
Alexander
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