DKIM
DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to your emails. This proves that the email was actually sent from your domain and not forged.
What is DKIM?
DKIM is an email authentication standard that makes it possible to verify that an email has not been altered during transmission and that it actually originates from the domain it claims to come from. It works by adding a digital signature to the email’s header.
How DKIM Works
- When your mail server sends an email, it generates a digital signature based on the email’s content and a private key.
- The signature is added to the email’s header as a DKIM field.
- The receiving mail server (e.g., Gmail, Outlook) looks up your public key in your domain’s DNS.
- The mail server verifies the signature against the public key. If they match, the email is authentic.
DKIM, SPF, and DMARC — the email trinity
DKIM is one part of a three-part email security system:
- SPF (Sender Policy Framework): Specifies which servers are authorized to send email from your domain. Checks the sender’s IP address.
- DKIM: Verifies that the email’s content has not been altered and that it originates from your domain. Uses a cryptographic signature.
- DMARC: Links SPF and DKIM together and tells the recipient’s mail server what to do with emails that fail verification (reject, quarantine, or allow).
All three should be set up for optimal delivery rates and protection against spoofing.
Why is DKIM important for online stores?
- Better delivery rate: Email providers (Gmail, Outlook, Yahoo) view emails with valid DKIM favorably. Without DKIM, your order confirmations and newsletters are more likely to end up in spam.
- Protection against spoofing: DKIM prevents others from sending emails that appear to come from your domain.
- Credibility: Customers who receive emails from an authenticated domain can trust that they are genuine.
- Requirements from email providers: Starting in 2024, Gmail and Yahoo will require bulk senders to have SPF, DKIM, and DMARC set up correctly.
DKIM in Shoporama
Shoporama supports DKIM through its integration with Heysender (email sending service). You can configure DKIM for your own domain so that all transactional emails (order confirmations, shipping notifications) and newsletters are sent with a valid DKIM signature. The setup requires that you add a DKIM DNS record to your domain.
How to Use Shoporama
Guides that demonstrate the concept in practice
Own email on your domain
Information about email hosting and options to get email on your own domain with Shoporama.
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