abhishek singh wrote: > 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 where are you telnetting from? localhost? telnet localhost 25? > > > mail from: <abs at domain.com> > > this command is showing Sender is ok while its not > user in my mail server.after that if you are using delayed checks, this is normal. BTW, does this sendmail box solely does smtp-auth relay only? It is not used for receiving mail right? > > rcpt to: <xyz at domain.com> > 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. > this is the problem. Okay, I thought you wanted something like that. You want to allow only mails where the sender exists on your system, right? > > i have one solution , but i want to know very easy > way to do that > . well...you could try looking for ready made rulesets for what you want. Otherwise, it will have to be written. > > > > --- Feizhou <feizhou at graffiti.net> wrote: > >> abhishek singh wrote: >>> hi >>> all >>> i am using sendmail mail server, i have configured >>> SASL+TLS+MailScanner+Spamassasin+.Procmail and its >>> working fine, but there is one problem when i am >> doing >>> telnet to my server on 25 port and using "mail >> from " >>> command to send mail by any user like >> abc at gmail.com or >>> any user @mydomain then sendmail is not able to >> verify >>> sending user , so plz help me how can i verify the >>> real sender means i want only my domain real user >> can >>> sendmails .and when i am using mail clients then >> its >>> working fine . prolem is occuring when , when i am >>> doing telnet directly to smtp port to my server >> Did you use AUTH to authenticate yourself? >> >> Also, from what you say, do you also want to make >> sure that any user who >> authenticates must use an email address in your >> domain as their return-path? >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > > > > __________________________________________________________ > Yahoo! India Answers: Share what you know. Learn something new > http://in.answers.yahoo.com/ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos