Hello-<br><br>If you firewall smtp to only accept connections from your 3 internal hosts, you won't get any inbound email from outside since external hosts can't reach the smtp server. Outbound mail will work ok from that server or the 3 firewall allowed internal hosts.
<br><br>POP is for retrieving email from the server.<br><br>If your goal is to have the CentOS box serve as a mail gateway for inbound & outbound email, you'd use /etc/mail/access to control how sendmail handles connections from hosts. In that file you'd give your 3 internal hosts permission to relay mail through that server.
<br><br><div><span class="gmail_quote">On 1/14/07, <b class="gmail_sendername">Denis Croombs</b> <<a href="mailto:denis@croombs.org">denis@croombs.org</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I have a Centos server and I want to only accept mail for the local users<br>from 3 mail servers, but I still want the users to be able to send emails<br>through this server, If I firewall the SMTP port to my 3 mail servers is
<br>there any way users will be able to still send via the main POP server ?<br>(currently using Sendmails SMTP-Auth)<br><br>Thanks<br><br>Denis<br><br>_______________________________________________<br>CentOS mailing list
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