Date: Mon, 29 Jul 2002 19:41:11 -0400 (EDT) From: "Mike" <root@unixhideout.com> To: <freebsd-questions@freebsd.org> Subject: Re: Allowing controlled relay with sendmail. Message-ID: <3230.192.168.1.10.1027986071.squirrel@email.unixhideout.com> In-Reply-To: <20020729192307.M7050-100000@lethargic.dyndns.org> References: <1317.192.168.1.10.1027979939.squirrel@email.unixhideout.com> <20020729192307.M7050-100000@lethargic.dyndns.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Alright guys i'll take your well proven advice. They will have to use the webmail we provide or setup their clients to send their own mail via their isp. I am not allowing an open relay. No way. One thing im confused on still. You said >Keep in mind that by opening up your mail server to let users from other >ISPs relay through you, you are becoming an open relay yourself. How am i an open relay if i am requiring auth before sending? This is just sad. The internet used to be such a nice place. Then the pinheads arrived. Im so limited to what i can do with my site/servers because of people with no respect for other people's property. What ever happened to if it's not yours dont touch it? =] > On Mon, 29 Jul 2002, Mike wrote: > >> Thats why i asked for allowing "controlled" relay with sendmail. How >> is that a spam security issue? smtp_auth will require a user and >> password before they send. Am i missing something? >> > > SMTP AUTH would work. > > There are also some ways of doing "POP befoe SMTP", where it will not > allow you to send mail until you sucessfully complete a POP3 session. > That is kind of messy. > > > > Also, a lot of ISPs do not allow customers to use SMTP servers on > anothe network. Bell Sympatico appears to block un-established outbound > port 25 packets on their border routers. UUNet has access lists applied > to their NASes. AOL redirects any outbound port 25 packets to their own > SMTP server. Basically, anyone that is on an ISP doing these kinds of > things will not be able to connect to your mail server for SMTP at all, > even if you do use SMTP AUTH. > > Might be something to keep in mind. -- The unixhideout network http://www.unixhideout.com ----------------------------------------- Free email that kicks ass from UnixHideout "The UnixHideout network" http://www.unixhideout.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3230.192.168.1.10.1027986071.squirrel>