I'm trying to set up sendmail so I can receive e-mail directly, in addition to using my isp supplied e-mail.
My biggest concern is that I don't want people on the internet to be able to use my smtp server as a means to send mail to people with the result making it look like it me... I think that's called "relaying"...
Anyway... can anybody recommend any good books on setting up sendmail?
This really shouldn't be all that difficult. If all you want to be able to do is to receive email from outside, what you basically want to do is go into the m4 config file on your server, and edit it to allow outside connections. That would be /etc/mail/sendmail.mc. Take the 127.0.0.1 restriction out of the DAEMON_OPTIONS line. Use make to rebuild sendmail.cf, and then restart sendmail.
Relaying will be turned off by default - you really have to try if you want to allow it.
Now - that may only be the beginning of your email issues - Do you own a domain name? Do you have the MX records pointing to your mail server? Do you have a static IP or are you on a dynamically allocated IP address? But the first stumbling block will be to get yourself set up to be able to receive email on your SMTP port if someone actually sends it there.
Oh - and you may need to change your firewall settings on the box too.
Thanks, Don
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