Date: Fri, 29 Jul 2005 02:28:23 -0700 From: Glenn Dawson <glenn@antimatter.net> To: Alexandre Vieira <nullpt@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Sendmail help needed Message-ID: <6.1.0.6.2.20050729022549.041a8d10@cobalt.antimatter.net> In-Reply-To: <755cb9fc05072901482a22540c@mail.gmail.com> References: <755cb9fc05072815171ac8003@mail.gmail.com> <6.1.0.6.2.20050728153729.156ff2d0@cobalt.antimatter.net> <755cb9fc050729003050edf7ef@mail.gmail.com> <6.1.0.6.2.20050729003728.06268da0@cobalt.antimatter.net> <755cb9fc05072901482a22540c@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
At 01:48 AM 7/29/2005, Alexandre Vieira wrote: >Hello Glenn, > >The odds of the reporting system are not of my fully knowledge, I just >know how and what mails go from where to who. > >Imagine that a script on a reporting machine does this: > ># mailx -s ERROR_FOUND_IN_PROC_SYNC syncproj > >It will try to deliver the mail locally, as suposed to. If I define a >central hub or a Smart host it will deliver the mail I exampled to >syncproj@mailhub and it works fine. The problem is that it won't >lookup the mailhub MX record, It will send it directly to mailhub:25. >Now imagine that mailhub is down? There is a backup server listed as >an MX record for the mailhub domain with a higher pref that would take >the work while mailhub prefered MX is down. If that's all you're worried about, you don't have to worry. If you specify a smart host and it's not available, the mail will get queued locally until it is available. The default settings will hold it in the queue for 5 days. If your smart host is down for that long, you probably have other things to worry about. -Glenn >I've been reading a little more and I think there is some kind of >feature/option that force a MX lookup on the mailhub host. > >Thank you > >On 7/29/05, Glenn Dawson <glenn@antimatter.net> wrote: > > At 12:30 AM 7/29/2005, you wrote: > > >Hello, > > > > > >Thanks for the help. > > > > > >The thing is that our main mailserver is not able to work with reports > > >from only one address. It has a db with some "names" that match > > >name@ourinternaldomain.tld and then send the reports to the respective > > >persons/mailing lists. > > >So the basics of the question is: Is it possible to get every mail > > >(including local mail) redirected to one domain with MX lookup? I've > > >been reading about LUSER_RELAY, LOCAL_RELAY, stickyhost, but I don't > > >know if this will solve the problem. > > > > ok, lets see if I understand this correctly... > > > > You have an existing mail server that handles mail for you local network. > > Some of the mail sent to that server is compared to a database which has > > entries that look like somename@internaldomain.com. If a match is found, > > the message is redistributed to some list of email addresses. So far so > > good? hope so... > > > > The addresses that are looked at for a match, are they the from address or > > the to address? > > > > For example, I send an email to you mail server using the address > > user@foo.com. Since I sent the email, it looks like it came from > > glenn@antimatter.net. One of those two addresses are compared to a > > database to decide what to do with the message. From your description, it > > sounds like the To: address is the one being looked at by the mail server. > > > > "Local" mail is normally considered to be mail between two addresses which > > are on the same machine. The from and to addresses for the local mail can > > have only account names, or, one or both could have a domain associated > > with it. Potentially, mail between the following pairs of addresses could > > all be local: > > > > From: To: > > foo bar > > foo@internal.com bar > > foo bar@internal.com > > > > From your description above, it sounds like you're looking at mail that is > > always delivered to the same address on the mail server, and then you're > > using the address the mail was from to decide what to do with it. Is that > > correct? > > > > From the description below (from the original email) it sounds like the > > scripts in question are running on machines that are not the mail server, > > and they're only specifying the username to deliver to, and not adding any > > domain name or hostname to the recipient. Depending on what else is > > happening on the machines that have the scripts that generate the mail, it > > sounds like building a null client is probably the simplest thing to > > do. Other options are using some of the masquerading features, or by using > > LOCAL_RELAY to force unqualified names to be send to a central server which > > will figure out what to do with them. > > > > Hope some of that helps...Let me know if I can clarify anything, I'll be > > around for at least another few hours... > > > > -Glenn > > > > > > >On 7/28/05, Glenn Dawson <glenn@antimatter.net> wrote: > > > > At 03:17 PM 7/28/2005, Alexandre Vieira wrote: > > > > >Hello folks, > > > > > > > > > >I'm trying to get past a standard in sendmail which is very simple. > > > > > > > > > >I have several machines reporting mails trough local MTA's (sendmail) > > > > >in each one of the boxes to our main mailserver. The thing is, I did > > > > >not developed the scripts and they are using "mailx -s <subj> user" > > > > >which normally would try to deliver it to a local account in the > > > > >machine. So the question is: Can I, in any way, define that every > > > > >"user" passed on the mailx in every script gets resolved to > > > > >user@somedomain.tld and not to a local system account? We have > > > > >hundreds of "names" in the scripts, so aliasing doesn't work for me. > > > > > > > > If you don't _ever_ want things to be delivered locally, you can create > > > > what sendmail calls a null client. That will send all mail to the > address > > > > you specify. You can get more details from > /usr/share/sendmail/cf/README > > > > > > > > -Glenn > > > > > > > > > > > > >My current hack is defining DR and DS in the sendmail.cf to a static > > > > >hostname but that takes redundancy to our mail system since if the > > > > >main mailserver is down the backup mail server (higher MX) won't take > > > > >any effect. > > > > > > > > > >Any help apreciated > > > > >Cheers > > > > >_______________________________________________ > > > > >freebsd-questions@freebsd.org mailing list > > > > >http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > > > >To unsubscribe, send any mail to > > > "freebsd-questions-unsubscribe@freebsd.org" > > > > > > > > > > > > > >Thanks > > >_______________________________________________ > > >freebsd-questions@freebsd.org mailing list > > >http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > >To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > > > > > > >-- >Alexandre Vieira - nullpt@gmail.com >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6.1.0.6.2.20050729022549.041a8d10>