[Virtualmin and Webmin] Creating SPF, DKIM and DMARC DNS TXT Records
Subject: [Virtualmin and Webmin] Creating SPF, DKIM and DMARC DNS TXT Records
Author: Mr. Turritopsis Dohrnii Teo En Ming (TARGETED INDIVIDUAL)
Country: Singapore
Date: 21 Oct 2021 Thursday Singapore Time
Type of Publication: Plain Text
Document Version: 20211021.01
DETAILED INSTRUCTIONS
======================
Creating SPF Record
====================
SPF record was created automatically previously. There is no need to create SPF record again.
Verifying SPF Record
======================
Go to mxtoolbox.com
The SPF record is
v=spf1 a mx a:turritopsis-dohrnii-teo-en-ming.com ip4:185.182.9.61 ip4:185.182.9.61 ip6:2a02:c207:2069:6121:0000:0000:0000:0001 ?all
Creating DKIM Record
=====================
Login to Virtualmin.
Click Email Settings > DomainKeys Identified Mail
DomainKeys Identified Mail
==========================
DomainKeys identified mail options
===================================
Signing of outgoing mail enabled? Yes
Selector for DKIM record name: 2021
Reject incoming email with invalid DKIM signature? Yes
Size of new DKIM key: 2048 bits
Domains to sign for: turritopsis-dohrnii-teo-en-ming.com
Click Save
Enable DomainKeys Identified Mail
==================================
Finding virtual servers to enable DKIM for ..
.. found 1 servers and 1 extra domains
Generating private key in file /etc/opendkim/keys/default.private ..
.. done
Extracting public key from private key in /etc/opendkim/keys/default.private ..
.. done
Setting domain and selector in DKIM filter configuration ..
.. done
Adding DKIM records to DNS domain turritopsis-dohrnii-teo-en-ming.com ..
.. added successfully
Enabling DKIM filter at boot time ..
.. done
Starting DKIM filter ..
.. done
Configuring mail server to use DKIM filter ..
.. done
Re-starting DNS server ..
.. done
Verifying DKIM Record
======================
Go to mxtoolbox.com
DKIM Selector: 2021
The DKIM record is
v=DKIM1; k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtAag9wT+JcVqf4LOXV4tIkfAeOudlfU5ne3at292ch+En3zhRlwUflzMJkE/Ax+chxy+lbj2X4/mUdhFiEsMcly2LNFkO06xLK+2LUcl71u+JfOvt1vSGwV1EXtlEkbtfH7y9eQu0SRX13cy0oQTvtpyrbbrmRSjUKpHA8wxdJQq80lj7X3n6EahtY1Y+P5t04tsUBpPyxplIauqp9j47iib2lLwXAAgUw+q2ezz2OgX9nwgMUZfVNFzZAuugnzoQgBij7UVmH72GOaDsJ724Pp2RqJhYXZaYMImy1pExDXRUc60I7EjXn6ONXHlszjO7U2XVOreaLGPlc4UAmMNrQIDAQAB
Creating DMARC Record
=====================
Login to Virtualmin.
Click Webmin on the top left.
Click Servers > BIND DNS Server
Click DNS zone turritopsis-dohrnii-teo-en-ming.com
Click DMARC button.
Percentage of messages to apply policy: 100%
Send aggregate feedback to: ceo@teo-en-ming-corp.com
Click Create.
Click Return to records type.
Click Return to zone list.
Click Apply configuration.
Verifying DMARC Record
=======================
Go to mxtoolbox.com
The DMARC record is
v=DMARC1; p=none; pct=100; rua=mailto:ceo@teo-en-ming-corp.com; adkim=r; aspf=r
Mr. Turritopsis Dohrnii Teo En Ming, 43 years old as of 21 Oct 2021, is a TARGETED INDIVIDUAL living in Singapore. He is an IT Consultant with a Systems Integrator (SI)/computer firm in Singapore. He is an IT enthusiast.
REFERENCES
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