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 DKIM Software and Services Deployment Reports 

These are status reports from DKIM developers. The reports are listed exactly as provided and have not been independently validated. To submit a report, please use: This Template.

Legend
Role
MTA  
Mail Transfer Agent
MUA 
Mail User Agent
Filter
Email filtering engine
Send  
Mail sending engine
Proxy
=
Intermediary that emulates SMTP MTA
Lib 
DKIM library module
Form
Prod =
Software or Hardware
Svc =
Online service
     

Cost
$
Fee for use
Free 
No charge for use
Open
Classic open-source license
Functions
Sign 
Performs message signing
Valid 
Performs signature validation
DNS 
Supports DNS administration, adding DKIM key to _domainkey TXT record
Assess =
Performs an assessment analysis (reputation, accreditation, vouching or the like) based on a domain name that can come from a DKIM validation.
DKIM Functionality

Organization
Package
Role
Form
Cost
Sign
Valid
DNS
Assess
MTA
Prod
$
Lib
Prod
Free
Filter
Prod
Open
MTA
Prod
Free, $
amavisd-new
(Preferably with Postfix and other dual-MTA setups, or as a Send mail milter; typically uses SpamAssassin for DKIM-based whitelisting and scoring.)
Filter
Prod
Open
MTA
Prod
$
MTA
Prod
Open
Filter, Lib
Prod
Open
Multiple
Prod
$
Proxy
Prod
Open
   
Lib
Open
MTA
Prod
$
MTA
Prod
Free, $
MTA
Prod
$, Free
Send
Prod
$
Proxy
Prod
Open
Send
Prod
$
Send
Svc
$
 
Send
Prod
$
Filter
Prod
$
MTA
$
MTA
Prod
$
Send
Prod
$
Send
Prod
$
 
 
Send
Svc
$
   
MTA
Prod
Open
Filter
Prod
Free
Send
Svc
$
 
 
Filter
Svc
$
 
Send
Svc
$
 
 
MTA
Svc
Free
   
MTA
Svc
$
Brandmail Solutions SbS 2.0
Multiple
Prod + Svc
$

 

 
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