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Old 11-28-2015, 04:25 AM   #1
lovingaditya28
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Registered: May 2009
Posts: 13

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Setup Sendmail with SPF and sender ID


Hi Experts,
Need you help on setting up my sendmail server to send email.
I want to send it mails from my domain name i.e. mail.abc.net instead fo default root@hostname.com
I have setup revert DNS name as mail.abc.net
now i also want to setup SPF for this rdns name.

following is the info about my sendmail:

Version 8.14.4
Compiled with: DNSMAP HESIOD HES_GETMAILHOST LDAPMAP LOG MAP_REGEX
MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6
NETUNIX NEWDB NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS
TCPWRAPPERS USERDB USE_LDAP_INIT

============ SYSTEM IDENTITY (after readcf) ============
(short domain name) $w = ip-172-31-30-219
(canonical domain name) $j = ip-172-31-30-219.us-west-2.compute.internal
(subdomain name) $m = us-west-2.compute.internal
(node name) $k = ip-172-31-30-219.us-west-2.compute.internal
========================================================

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)

looking forward for your valuable advise.
 
Old 11-28-2015, 07:07 PM   #2
smallpond
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Registered: Feb 2011
Location: Massachusetts, USA
Distribution: CentOS 6 (pre-systemd)
Posts: 2,666

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172.31.30.219 is a non-routable address. If that is your actual IP then you are behind NAT so you may be able to send but not receive, unless you are sending through a smart host relay.

Setting up sendmail the first time by yourself is likely to make you an unintentional spammer unless you have thorough knowledge of smtp, firewalls, DNS and spam blocking.
 
  


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