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Sendmail Setup

Posted on 1998-07-12
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Last Modified: 2013-12-15
I am running RedHat 5.0. I was wonding if someone could help me with setting up sendmail as a POP3 server.  I am new to the setup of mail servers and web servers.
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Question by:davidwag
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chytrace earned 100 total points
ID: 1628337
Hi,

  sendmail itself has nothing to do with POP3 mail access. Sendmail should be configured in a usual for handling incoming and outgoing mail messages and for local delivering. For providing POP3 at your side just check if you have POP3 entries enabled in the files:

/etc/inetd.conf
/etc/services
/etc/hosts.{allow,deny}

and in.pop3d server installed.

Hope this helps

             Radovan

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by:davidwag
ID: 1628338
What should I put in hosts.{allow,deny}?
Currently both are empty
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by:chytrace
ID: 1628339
In the case you want to make some access restrictions you can specify which services are allowed(denied) for which host or domain or IP address. For example:

----------------------- hosts.deny ----------------------------
# hosts.deny    This file describes the names of the hosts
#               which are
#               *not* allowed to use the local INET services,
#               as decided
#               by the '/usr/sbin/tcpd' server.
#
# Version:      @(#)/etc/hosts.deny     1.00    05/28/93
#
# Author:       Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org
#
#
ALL: very.bad.domain :DENY
#ALL:ALL
# End of hosts.deny.

------------------- hosts.allow -----------------------------

# hosts.allow   This file describes the names of the hosts
#               which are
#               allowed to use the local INET services,
#               as decided by
#               the '/usr/sbin/tcpd' server.
#
# Version:      @(#)/etc/hosts.allow    1.00    05/28/93
#
# Author:       Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org
#
#
ALL: LOCAL :ALLOW
# My network xxx.yyy.zzz.0
ALL: xxx.yyy.zzz. :ALLOW
ALL: .my.domain :ALLOW
# Explicitly allowed the following set of INET services
in.ftpd in.talkd in.fingerd in.telnetd: .friend.domain :ALLOW
in.ftpd in.telnetd in.rlogind : host.friend.domain :ALLOW

# Friend IP network address
in.ftpd in.talkd in.fingerd in.telnetd: 111.222.333. :ALLOW

# Everything else is not allowed
ALL:ALL:DENY
# End of hosts.allow.

More info man tcpd, hosts_access(5), hosts_options(5).

Regards

               Radovan

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by:davidwag
ID: 1628340
Thank alot.
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by:davidwag
ID: 1628341
One extra comment I just thought of...Do I hurt anything by leaving these files blank?
TIA
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by:chytrace
ID: 1628342
No, by default  these files are empty. You should use TCP wrappers just in the case your system policy needs to provide access resctrictions for outside users.
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