Re: [CentOS] sendmail security-with example

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Email Lists wrote:
Although this is not specifically on topic, it will help in the big picture
of your overall mail system(s) design and implementation...

Please do not forget to carefully craft proper SPF records for your domain
or domains... then you would need to deal with SPF issues in the servers as
to what you will and will not accept from others.

http://www.openspf.org


I won't get into the SPF debate but significant numbers of well experienced mail administrators do not believe in its usefulness at all and that includes admins all across various mtas.

eg: SPF breaks forwarding.

The real problem is SMTP is outdated. SMTP is broken for today's Internet.
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