How To Add Dkim Public Key In Dns Cpanel

Overview

This article shows you how to add together Domain Keys Identified Mail (DKIM) TXT records to your domain. DKIM is a method for fighting spam that works by associating outgoing email with a domain via a digital signature. The sending mail server attaches a "signature" to an e-mail that has been encoded with a private cardinal. If the receiving mail server is configured to bank check for DKIM, it will use a corresponding public key (the TXT record) to decode the signature and verify its authenticity. Because DKIM enabled email is less likely to be spam, recipient mail servers are less likely to filter the e-mail. This tin improve electronic mail deliverability.

This article is simply for calculation an existing DKIM record that y'all already have the info for.

Of import Annotation: DKIM is reputation based. Over fourth dimension, using DKIM can enhance the reputation of associated addresses and afterward ameliorate deliverability. All the same, addresses that send high volumes of low quality content that is regularly flagged by recipients may still be targeted by spam filters.

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This article is provided every bit a courtesy. Installing, configuring, and troubleshooting custom DNS settings is non supported past Media Temple. Please accept a moment to review our Argument of Support.

Requirements

Your domain must exist using Media Temple nameservers:

NS1.MEDIATEMPLE.Net
NS2.MEDIATEMPLE.NET

For information on how to ostend this for your domain, come across this article: Performing a WHOIS search.

Instructions

Adding DKIM TXT records to your Media Temple zone file

Grid mail does not support DKIM. In order to apply DKIM with a domain hosted on the Grid, your email must be managed elsewhere. If you lot'd like an additional layer of electronic mail verification for your Media Temple hosted email, you may want to check out this article for creating and calculation an SPF tape:
How tin can I create an SPF record for my domain?

1. Log into your Account Center and click on the domain that y'all'd similar to add together the DKIM TXT records to. Alternatively, hover over the domains tab at the peak of the Account Center and click on Bear witness All. Select the relevant domain from the list.
two. Click the Edit DNS Zone File selection under the DNS & ZONE FILES card.

4. Click + Add Row to create a new record. This record will tell the post server that all email messages associated with this domain use DKIM.

Subdomain (Proper noun): _domainkey
Type: TXT
Information: o=-

5. Click + Add Row to create a new record and add together your DKIM key. This is the public key that will be used to decode the email's associated digital signature. In one case you lot've added both records, click on Save Changes. Permit up to 24 hours for propagation, after which time DKIM should be enabled for the domain.

Subdomain (Name): default._domainkey
Blazon: TXT
Data: Your DKIM key.

Of import!

If your DKIM key in the Data field exceeds 255 characters and you do not break information technology up with quotes, you will receive the following error:

This is probable considering your primal is 2048 bits instead of 1024.

In order to add together a record that exceeds 255 characters, you must break the record upward with quotes (") and add both strings to the TXT field.

Sample 2048 bit key that exceeds 255 characters:

v=DKIM1\; grand=rsa\;
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4TWhAkE9cQBB7g2C6jGb
4jdiaShZEtWBkupXFtBdOdJTvrMTAEPIhZske9+bp/ILDYbWG0Tzw7DcmWoTPF+J
bNDH4mN8hSy1pPxyxsmvtFqr5bMlaWl42arkWR3Zzq9A/ReMcEfZ5avwP2JubH72
Bg0SP6NNfrUD9sAWtzOIAt1rT1UygohlB+2EdeHdWFN9neHHDN/hVzL82qufuMZ0
bOAHyn/kuT9hK0HkHc+vHTGIloPlhr6siNfmGwU/Lmv7d7uY/YFpvMvZrl90Fu77
5J7944VNMp6E7tGlJjlt01zDGa5QH1K1funRdrObLxxMgq0Z7RMx5GD5CHMS4tRn
eQIDAQAB

In order to enter the above key into the TXT field, divide it into multiple strings using quotation marks:

"v=DKIM1\; k=rsa\;
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4TWhAkE9cQBB7g2C6jGb
4jdiaShZEtWBkupXFtBdOdJTvrMTAEPIhZske9+bp/ILDYbWG0Tzw7DcmWoTPF+J
bNDH4mN8hSy1pPxyxsmvtFqr5bMlaWl42arkWR3Zzq9A/ReMcEfZ5avwP2JubH72"

"Bg0SP6NNfrUD9sAWtzOIAt1rT1UygohlB+2EdeHdWFN9neHHDN/hVzL82qufuMZ0
bOAHyn/kuT9hK0HkHc+vHTGIloPlhr6siNfmGwU/Lmv7d7uY/YFpvMvZrl90Fu77
5J7944VNMp6E7tGlJjlt01zDGa5QH1K1funRdrObLxxMgq0Z7RMx5GD5CHMS4tRn
eQIDAQAB"

Now add both strings to the aforementioned information field for the TXT record. Be sure to include a space between the strings.

5. Click Save to commit the changes.

Instructions for Plesk

Plesk has a congenital-in way to toggle DKIM on and off. However, enabling DKIM for outgoing email requires that y'all become the associated TXT tape from Plesk and add it to your Media Temple zone file. All required steps are included in the article.

1. Log into your Plesk admin panel and click on Tools & Settings.

two. Click on Mail Server Settings under Mail

3. Scroll downwards to the DKIM department and bank check the boxes to enable.

4. Curlicue to the bottom and click on OK. You will then exist transported back to the Tools & Settings menu where you'll receive a confirmation that your Mail settings accept been updated. This has enabled DKIM for the server.

v. The next step is to enable DKIM for private domains, which volition create the associated TXT records in your Plesk zone file. Click on Websites & Domains to list your domains.

Alternatively, if you're using Plesk'due south service provider view, yous volition click on Domains and so select the relevant domain from the listing.

6. Click on Mail Settings for the domain that you'd like to enable DKIM protection on.

seven. Scroll downwards and cheque the Apply DKIM... box and click apply.

viii. Enabling DKIM protection for the domain created the required TXT records in the domain'south Plesk DNS zone file. In order for DKIM to work properly, these records will accept to be added to your Media Temple zone file. Navigate back to the domain'southward settings and click on DNS Settings.

9. Scroll down until you encounter a TXT record that begins with "v=DKIM1;" followed by a long string of characters. This is the DKIM TXT record that needs to be added to your Media Temple zone file. Copy the entire record. If you need help creating this record in your Media Temple zone file, use the instructions at the beginning of the article. Once you lot've saved the record, allow up to 24 hours for propagation, after which time DKIM should be enabled for the domain.

Instructions for cPanel

Equally of cPanel & WHM version 62, cPanel provisions SPF and DKIM for new accounts by default. However, the organisation does not automatically provision these DNS records for existing accounts. Y'all tin enable DKIM for all accounts simultaneously via WHM, or for individual domains via cPanel.

It is as well very important to annotation that enabling DKIM for outgoing e-mail requires that you get the associated TXT record from cPanel and add together information technology to your Media Temple zone file. All required steps are included in the article.

Enabling DKIM/SPF Globally

one. Log into WHM and enter DKIM into the search field. Click on Enable DKIM/SPF Globally

2. Click Proceed.

3. In order to complete the process and enable DKIM/SPF to piece of work properly for outgoing messages, you must add the DKIM and SPF records to your Media Temple zone file. To quickly navigate to your zone files, type "Edit DNS" into the height left search field.

iv. Select a domain. Y'all must copy the associated DKIM and SPF record for each of your domains and add together them to your Media Temple zone file. Open each of your zone files and curlicue down until you lot encounter the DKIM and SPF TXT records that WHM created. The DKIM TXT record will begin with "v=DKIM1;" and the SPF TXT record will brainstorm with "v=spf1".

5. The records are domain specific and volition accept to be added to the proper zone file for each domain. For instructions on how to add these text records, scroll to the top of the article.

Resource

How tin I create an SPF record for my domain?