Understanding DKIM DomainKeys Identified Mail (DKIM) is a method used to authenticate email messages by attaching a digital signature to the email headers. This signature is created using a private key and verified by recipients using a public key published in DNS. The purpose is…
DMARC is an email authentication protocol that helps domain owners protect their email from spoofing and phishing attacks. It works by specifying policies that tell receiving mail servers how to handle emails that fail SPF and DKIM checks. A DMARC record is published in DNS…
Run instant network lookups with the free email normalizer. Enter a domain, IP, or URL to get detailed diagnostic information and status reports.
Email privacy involves protecting your email address and communications from unauthorized access, spam, and phishing attempts. Since email addresses are often shared online, they can become targets for malicious actors who collect them for spam or fraud. When to Use an Email Privacy Checker To…
Validate email address format and syntax with our free email validator. Check if an email address follows proper formatting rules and detect common typos - essential for form validation and data quality.
MX records are DNS entries that specify which mail servers handle incoming email for a domain. They include priority values to manage the order in which servers are used. This system ensures reliable email delivery by allowing backup servers to take over if the primary…
SMTP (Simple Mail Transfer Protocol) is the backbone protocol for sending emails on the internet. It handles the transmission of your email from your client or application to the recipient's mail server. Ensuring your SMTP server is properly configured and reachable is critical for reliable…
Understanding SPF Records SPF (Sender Policy Framework) records are DNS TXT records that specify which mail servers are permitted to send emails on behalf of your domain. This mechanism helps receiving mail servers verify that incoming messages claiming to be from your domain are actually…
Email headers contain detailed metadata about an email's journey from sender to recipient. This includes information such as the originating IP address, timestamps, mail servers involved, and authentication results. Analyzing these headers helps reveal the true source of an email and diagnose delivery issues. When…