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| Sendmail: how do you send mail from localhost only ? https://forum.linode.com/viewtopic.php?f=11&t=1968 |
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| Author: | caritos [ Mon Nov 21, 2005 4:29 pm ] |
| Post subject: | Sendmail: how do you send mail from localhost only ? |
I want to prevent my sendmail app for being a spam agent. How do I configure sendmail so that I send mail only from localhost. |
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| Author: | rjp [ Mon Nov 21, 2005 7:12 pm ] |
| Post subject: | |
In your sendmail.mc file, you should add a line of the form: DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl then regenerate your sendmail.cf file. Beware of the use of backquotes in m4 files - that's a backquote before the "P" in "Port". If you already have such a line, and you don't have any other lines binding to other addresses, then this has already been done for you. You can use netstat -ap to see what processes are listening to which ports. |
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| Author: | sednet [ Tue Nov 22, 2005 4:00 pm ] |
| Post subject: | Re: Sendmail: how do you send mail from localhost only ? |
caritos wrote: I want to prevent my sendmail app for being a spam agent. How do I configure sendmail so that I send mail only from localhost.
add: RELAY_DOMAIN(`<your IP> <your hostname> localhost 127.0.0.1') to sendmail.mc and rebuild sendmail.cf with something like: m4 sendmail.mc >sendmail.cf Take some time to make sure you have it right. There are scum out there who make a living out of abusing mail servers. You can find a decent sendmail tutorial at http://www.feep.net/sendmail/tutorial/. Or get the oreilly book. |
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