How does salesforce supports dkim 2048

Step 1: Click on Setup > Email Administration > DKIM Keys Step 2: Create a New Key with Salesforce Step 3: Click “Save” In this example, we’ll be using: 2048-bit DKIM key size


Do you support a 2048 bit (or higher) domain key (DKIM)?

Do you support a 2048 bit (or higher) Domain Key (DKIM)? More and more organizations are moving from the shorter 384, 512 and 768-bit keys up to 1024 and higher in order to protect against spoofing because the smaller keys are easier to crack. Our DNS system intuitively supports a 2048-bit key and larger.

What is DKIM sign in Salesforce?

Use the DKIM (Domain Keys Identified Mail) key feature to let Salesforce sign outbound emails sent on your company’s behalf. These signatures give recipients confidence that the email was handled in a way that’s consistent with your company. 3. Who signs (DKIM Sign) the email message?

How do I implement DKIM keys in ssalesforce?

To ensure your email message from SSalesforce do not end up unread in the recipient’s spam folder, you can easily implement DomainKeys Identified Mail (DKIM). From Setup, enter DKIM Keys in the Quick Find box, then select DKIM Keys.

How to enable DKIM signing for your custom domain using PowerShell?

Go to Protection > dkim. Select the domain for which you want to enable DKIM and then, for Sign messages for this domain with DKIM signatures, choose Enable. Repeat this step for each custom domain. To enable DKIM signing for your custom domain by using PowerShell. Connect to Exchange Online PowerShell. Run the following command:

How do I use DKIM in Salesforce?

Create a DKIM KeyFrom Setup, enter DKIM Keys in the Quick Find box, and then select DKIM Keys.Click Create New Key.Select the RSA key size. … For Selector, enter a unique name.For Alternate Selector, enter a unique name. … Enter your domain name.Select the type of domain match you want to use.Click Save.More items…

What is DKIM in Salesforce?

Use the DKIM (DomainKeys Identified Mail) key feature to let Salesforce sign outbound email sent on your company’s behalf. These signatures give recipients confidence that the email was handled in a way that’s consistent with your company.

What Dkim 2048?

With double the key length, 2048 bit keys provide enhanced tampering protection with the strongest signing for automated security domain authentication. The 2048 bit keys are secure against forms of cryptographic attacks for the next several years.

How do I set up SPF and DKIM in Salesforce?

Follow the below steps:In Setup, enter DKIM Keys in Quick Find box, then select DKIM Keys.Click Create New Key.For Selector, enter unique name.Enter your domain name.Select preferred type of domain match.Save changes.More items…

How does DKIM verification work?

In general terms, the process works like this: A domain owner publishes a cryptographic public key as a specially-formatted TXT record in the domain’s overall DNS records. When a mail message is sent by an outbound mail server, the server generates and attaches a unique DKIM signature header to the message.

Does AWS Support 2048 DKIM?

Amazon Simple Email Service (Amazon SES) customers can now use 2048-bit DomainKeys Identified Mail (DKIM) keys to enhance their email security.

How do I know the size of my DKIM?

If you’re not an admin, you can check the length of your DKIM key with a web-based tool created by Dave Johnson at If you use Google Apps and a standard DKIM setup, enter ‘google’ (no quotes) in the selector field and your domain in the latter (e.g.,

How do I generate a private key in DKIM?

Choose a domain. … Pick a DKIM selector. … Choose a public and private key generator. … Generate public and private keys. … Configure the DNS server with the public key. … Save the private key to your MTA. … Gmail. … Office 365.More items…•


Email is so 2005, and yet traffic volumes are still growing 4% per year. It’s still an important vector for communications but with flaws due to its design heritage.

Compliance BCC Email for help with troubleshooting

The title may sound officious, but Compliance BCC is really handy for troubleshooting.

Authenticate your email: SPF

Sender Policy Framework (SPF) shows that another server (e.g. has permission to send on behalf of a whole domain (e.g. and is much stronger than a verified email address (which only proves that you had access to a single email address for a moment in time).

Tamper-proof: DKIM

After SPF, along came another progression. DomainKeys Identified Mail (DKIM) shows that no one altered your email on route from the sender’s email server, to the recipient’s email server.


SPF shows that the sender is valid, DKIM shows that the email hasn’t been interfered with, but what about the rest of the emails that appear to be coming from your domain? Is it a forgery (just like anyone can print a letterhead) or should the email still be considered valid? Domain-based Message Authentication, Reporting and Conformance (DMARC) completes the set and tells the recipient email server what to do..

Testing and Further Reading

You may want to use the’s resources to test your SPF, DKIM and DMARC setup. DNS changes can take up to 48 hours to percolate, so do remember to be patient!

22 Feb How to Setup Salesforce SPF and DKIM (New CNAME Version)

If you send emails out of Salesforce you have two options: you can have Salesforce email servers send the email or you can have Salesforce relay the email to your email server (Gmail, Exchange, Office 365).

Why Setup SPF and DKIM in Salesforce?

When you have an external email sender, like Salesforce, send emails from email addresses that have your domain name it’s important to setup SPF and DKIM. Otherwise, the person receiving the message will have the email flagged for possible spoofing in their inbox. How this looks will vary depending on the person receiving it.

How to Setup SPF and DKIM to enable Salesforce to Send Emails

Navigate to the Salesforce Setup menu and type in DKIM in the quick find. Click DKIM Keys.

What happens if you don’t enable DKIM?

If you do not enable DKIM, Microsoft 365 automatically creates a 1024-bit DKIM public key for your default domain and the associated private key which we store internally in our datacenter. By default, Microsoft 365 uses a default signing configuration for domains that do not have a policy in place. This means that if you do not set up DKIM yourself, Microsoft 365 will use its default policy and keys it creates to enable DKIM for your domain.

What is the 2048 bit key?

This new 2048-bit key takes effect on the RotateOnDate, and will send emails with the 1024-bit key in the interim. After four days, you can test again with the 2048-bit key (that is, once the rotation takes effect to the second selector).

What is DKIM in email?

DKIM is one of the trio of Authentication methods (SPF, DKIM and DMARC) that help prevent attackers from sending messages that look like they come from your domain. DKIM lets you add a digital signature to outbound email messages in the message header. When you configure DKIM, you authorize your domain to associate, or sign, …

How many cname records are needed for each domain in Microsoft 365?

If you have provisioned custom domains in addition to the initial domain in Microsoft 365, you must publish two CNAME records for each additional domain. So, if you have two domains, you must publish two additional CNAME records, and so on. Use the following format for the CNAME records.

Does DKIM work with SPF?

Although D KIM is designed to help prevent spoofing, DKIM works better with SPF and DMARC. Once you have set up DKIM, if you have not already set up SPF you should do so. For a quick introduction to SPF and to get it configured quickly, see Set up SPF in Microsoft 365 to help prevent spoofing. For a more in-depth understanding of how Microsoft 365 uses SPF, or for troubleshooting or non-standard deployments such as hybrid deployments, start with How Microsoft 365 uses Sender Policy Framework (SPF) to prevent spoofing. Next, see Use DMARC to validate email. Anti-spam message headers includes the syntax and header fields used by Microsoft 365 for DKIM checks.

Does Microsoft 365 have DKIM?

Microsoft 365 automatically sets up DKIM for its initial ‘’ domains. That means you don’t need to do anything to set up DKIM for any initial domain names (for example, For more information about domains, see Domains FAQ.

Can bulk email be set up as a DKIM?

Some bulk email service providers, or software-as-a-service providers, let you set up DKIM keys for email that originates from their service. This requires coordination between yourself and the third-party in order to set up the necessary DNS records. Some third-party servers can have their own CNAME records with different selectors. No two organizations do it exactly the same way. Instead, the process depends entirely on the organization.

Leave a Comment