SPF and DKIM are two authentication protocols that help verify the authenticity of an email message. SPF (Sender Policy Framework) checks if the email sender is authorised to send emails from a particular domain, while DKIM (DomainKeys Identified Mail) verifies the integrity of the message content.
One reason why emails may end up in the spam folder is due to the lack of authentication. Email and Antispam providers, such as Gmail, Yahoo and ProofPoint, use complex algorithms to determine whether an email is legitimate. If an email fails to pass the authentication checks, it may be marked as spam or sent to the junk folder.
SPF is an essential protocol that helps verify that the email comes from a legitimate sender. It works by allowing the email receiver to check if the sender's IP address matches the one authorised to send emails from a particular domain. If the IP address doesn't match, the email is considered fraudulent and may be marked as spam.
DKIM, on the other hand, verifies the integrity of the message content. It adds a digital signature to the email header that confirms the email's authenticity. When the email is received, the recipient’s provider verifies the signature against the public key published in the sender's DNS record. If the signature is valid, the email is considered legitimate, and it is delivered to the recipient.
Emails that fail to pass the authentication checks may also be marked as spam if they contain suspicious elements. For example, emails that include spammy words, links to malicious websites, or attachments with viruses are likely to be marked as spam.
In conclusion, authentication protocols such as SPF and DKIM are crucial in preventing emails from been flagged as spam. By verifying the authenticity of the email sender and message content, these protocols help email providers determine whether an email is legitimate. This helps prevent fraudulent emails from reaching the inbox and ensures that important messages are not missed.
If you are experiencing issues with your emails ending up in the spam folder, consider implementing SPF and DKIM to increase your email deliverability and ensure your messages reach their intended recipients. Contact us for more information: firstname.lastname@example.org