How to setup DKIM on DirectAdmin?

[Jovani]

I am having a small problem when setting up DKIM on Directadmin, I have support from Directadmin support staff but not succeed because I'm new to VPS hosting and no more experience on install/config a VPS
Anyone can give me tips on how to setup DKIM on DirectAdmin?

Your answers will be very much appreciated!

 

[yestyle]

A good question, I have got same problem on setting up DKIM in the past and I solved it to send/receive all domain emails
Here's tips you can follow how to setup DKIM on DirectAdmin
Fist you use terminal to access your VPS via ssh
Step 1
nano /usr/local/directadmin/conf/directadmin.conf
Add

dkim=1

into end of this file
Ctrl + O to save file and exit

Step 2
Run 2 these commands to add records into DNS management automatically

cd /usr/local/directadmin/scripts 
./dkim_create.sh webmastersun.com

Edit file

nano /etc/exim.conf

Ctrl + W to search remote_smtp:
Add below

remote_smtp:
driver = smtp
dkim_domain = $sender_address_domain
dkim_selector = x
dkim_private_key = ${if exists{/etc/virtual/$sender_address_domain/dkim.private.key}{/etc/virtual/$sender_address_domain/dkim.private.key}{0}}
dkim_canon = relaxed
dkim_strict = 0

Step 3
Ok, now you need to add TXT record in Godaddy with TXT in DA provided.
In Host zone of Godaddy

Add TXT record
Host: @
Value:
"Your_value_here"

Restart Exim

service exim restart

Now you can send a test email to an address for checking and see which you archived

All done :victory:

 

[Jovani]

Cool @yestyle, I installed DKIM successfully on my vps followed by your tips.
An additional question: what about Name servers? how to set that between DA and Gadaddy for my domain works?

 

[yestyle]

Skip using the DA tool to "create" the nameservers, as they're nothing more than ns1/ns2 A records.
You can add those manually:
Admin Level -> DNS Admin -> domain.com -> Add A records:

ns1 = 1.2.3.4
ns2 = 1.2.3.4

where 1.2.3.4 can be the same IP adress for both.

Then change the NS records for the domain to be:
domain.com. NS ns1
domain.com. NS ns2

Take special note of the dots.

Then just register them at godaddy as nameserver (sometimes called "hostnames")
Once registered, then you can change the NS records at godaddy so the domain uses them.

Wait a moment and checking on some domain tools to see your domain pointing to name servers you created.

Regards,

 

[TeoC NETCreator]

Good Job! Great Tutorial!

 

[yestyle]

yestyle

Thanks Teo C, I have got more information from your useful shares on this forum.
If lack of information for tips above, you can add extra information then!

 

[Jovani]

@yestyle, I still have small problem on MX record when I checked with DNS health tool online. How to solve this? I'm using Directadmin for my vps host.

 

[yestyle]

@yestyle, I still have small problem on MX record when I checked with DNS health tool online. How to solve this? I'm using Directadmin for my vps host.

loL...if you are using DA then first, you create these
You need to be sure that created this

server.domain.com

To change your hostname, you login to DA and go to:

Admin Level => Admin Settings => Server's Hostname

wait a moment for DA restarts.
After you create hostname, it must resolve, so go to

Admin Level => DNS Administration => Add Zone

And configure as follow

Domain Name: server.yourdomain.com
IP Address: 2.3.4.5 (your server IP)
ns1: ns1.yourdomain.com
ns2: ns2.yourdomain.com

where server.yourdomain.com is your new hostname, the server IP address will usually be your license/main IP, and the ns1/ns2 values can be whatever your domain.com uses. Leave the "Create Reverse IP Lookup" checkbox disabled/unchecked.
The reason we add a new zone for the hostname is to ensure that
- it resolves
- it has it's own MX record, so email from the hostname are valid. Without the MX records, many of your emails (eg: from the php/apache "mail()" function) may be not worked.

Note that you will need to add reserve IP lookup on your vps control panel or contact your hosting provide to enable it if it has not been enabled.

Good luck!

 

[andrewbenn]

1) Ensure the exim supports DKIM signging
2) Add it to exim
3) Turn in on in DirectAdmin.
4) At this point, any domain created after the change should have the DKIM keys created, and dns zones updated.
For existing domains, you can either enable it individually for each domain, one-by-one
5) or you can enable it for all of your domains like this