Email Authentication Tester

About Email Authentication

Email authentication is crucial for ensuring your emails are delivered properly and not marked as spam. It also helps prevent email spoofing and phishing attacks.

SPF (Sender Policy Framework)

SPF specifies which mail servers are authorized to send email on behalf of your domain. It helps prevent spoofing and improves deliverability.

DKIM (DomainKeys Identified Mail)

DKIM adds a digital signature to your emails that can be validated by receiving mail servers, confirming the email hasn't been tampered with.

DMARC (Domain-based Message Authentication, Reporting & Conformance)

DMARC builds on SPF and DKIM to tell receiving servers what to do if an email fails authentication checks, and provides reporting capabilities.

BIMI (Brand Indicators for Message Identification)

BIMI allows you to display your logo in supporting email clients when your emails pass authentication, enhancing brand recognition.

MTA-STS (SMTP MTA Strict Transport Security)

MTA-STS is a security standard that enables mail service providers to enforce TLS encryption, ensuring email transport security.