DomainKeys Identified Mail is a scheme for signing and verifying email messages to confirm that that the source hasn't been forged, and is typically implemented by MTAs. The source MTA adds a header to the message body containing a signature, and the destination MTA verifies this signature against a ...

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votes
1answer
2k views

dkim signature not present or bad format

I'm going mad with dkim-filter + postfix. My message are signed but Gmail notify me errors like "dkim=neutral(no signature)" or "dkim=neutral(bad format)" I don't know what is wrong. I've generated ...
-1
votes
1answer
502 views

Debian Unstable + Postfix 2.6.5 + dkim-filter 2.8.2 issue

I have Postfix installed on Debian Unstable, as the title states, the system is completely up-to-date, I have tried to get DKIM signatures working on outgoing mail using dkim-filter 2.8.2. I couldn't ...
-2
votes
1answer
141 views

Need a good guide for setting up postfix [closed]

I will be sending mail from my machine (just sending, not receiving any) I'm looking for a good guide that will help me configure it with all the things that are required so that receiveing servers ...
-2
votes
0answers
18 views

Online mail server settings checking service [on hold]

I want check my mail server for many settings (MX, PTR, A, dkim, spf, OpenRelay, valid HELO, RBL status and more and more..) i recieve mail to checkme@check_my_server.tld and get reply with detail ...
-2
votes
1answer
100 views

Modify DNS TXT Record in Domain Control Panel or Apache [closed]

I am trying to setup DKIM for email verification and have been asked to add a public key to my DNS. Add public key in your DNS; here is a sample resource record with selector "default": ...
-4
votes
2answers
293 views

SPF and DKIM configuration with postfix [closed]

I am using Centos-5 and have configured postfix mail server. How to i configure SPF and DKIM in Postfix.
-5
votes
2answers
171 views

DKIM do I need to allow port 8891 on my firewall? [closed]

I'm trying to set up dkim on my server so my emails are less likely to end up in my customers' spam. Quick question: does port 8891 need to be opened? I'm using ufw. Many thanks in advance,