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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

Type
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
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
Software/Hardware

 
Organization
Package
Type
Cost
Sign
Valid
DNS
MTA
$
Lib
Free
Filter
Open
 
 
MTA
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
Open
MTA
$
 
MTA
Open
 
Filter, Lib
Open
 
Multiple
$
   
Proxy
Open
 
   
Lib
Open
 
MTA
$
 
MTA
Free, $
MTA
$, Free
Send
$
   
Proxy
Open
   
Send
$
Send
$
 
Filter
$
MTA
$
   
MTA
$
 
Send
$
 
Send
$
 
MTA
Open
 
Filter
Free
 
 

 

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Services

 
Organization
 
Service
Sign Valid DNS
:
 
:
:
 
:
:
 
:
 

 

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