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DKIM: Difference between revisions

DKIM (view source)

Revision as of 21:16, 13 December 2019

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== What is DKIM? ==
 
This is just a brief overview of DKIM, you can read more about DKIM on other place or RFC6376
 
Also see [[SPF Record]]
 
=DMARC=
 
This is just a brief overview of DKIM, you can read more about DKIM on other place or RFC7489
 
Adding a DMARC DNS record is optional, but can be beneficial.
sent through smtp.net.uk'''
 
There are various online generators for creating a dmarc record, but the contents of the record will cover the following basic settings:
* 'v' - The version - usually DMARC1
* 'p' - What to happen if dmarc fails, eg none, quarantine, reject
* 'rua' - an email address (or multiple comma separated addresses) of where you'd like to XML receive machine readable statistic reports
* 'ruf' - an email address (or multiple comma separated addresses) where you'd line to receive individual failure'forensic' reports, these are XML machine readable copes of email that failed
 
There are more options available beyond the ones above.
 
The rua and ruf will be used by some of the bigger email providers - eg gmail, outlook, yahoo.
We'd suggest initially setting up reporting but no rejecting so that you can see how it's working out.
 
AndAn example dmarc record which would send you reports but not tell other email severs to block if a message fails DKIM would look like this:
 
Host: _dmarc
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