Email Analysis — Check Your Email Security
Test your email configuration in seconds. This free mail tester checks SPF, DKIM, DMARC, 25 blacklists, encryption and over 20 further checks — just send an email and get a detailed report.
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Check email security — all checks at a glance
Every incoming email automatically runs through more than 20 checks — from the SPF check to the blacklist test to header analysis. Each check is explained individually.
SPF Check
Validates your domain's SPF TXT record and whether the sending server is authorized — including a full RFC 7208 audit with recursive lookup counting.
SPF IP Analysis
Recursively resolves every IP in your SPF record and checks each one for blacklist entries, reverse DNS, FCrDNS and ASN ownership.
DKIM Check
Cryptographically verifies the DKIM signature and analyzes algorithm, key strength, signed headers and domain alignment for each individual signature.
DMARC Check
Validates the DMARC record, evaluates SPF and DKIM alignment, and audits the policy for weaknesses — including authorization of external report recipients.
ARC Chain Validation
Analyzes the Authenticated Received Chain per RFC 8617 — essential for forwarded email where SPF fails by design.
Envelope-From vs Header-From
Compares the Return-Path address with the visible From header. A mismatch breaks SPF alignment and is a common spoofing indicator.
TLS Transport Analysis
Extracts TLS version, cipher suite and key strength from the Received headers and shows the encryption status per hop in the routing path.
MTA-STS & TLS-RPT
Checks whether MTA-STS is correctly set up with DNS record and policy file, and whether TLS-RPT reporting is enabled.
DANE / TLSA
Checks TLSA records for your MX hosts. DANE enables cryptographic certificate verification via DNS and requires DNSSEC.
MX TLS Certificate
Establishes a real STARTTLS connection to your MX servers and fully inspects the presented certificate — from the chain to the expiry date.
STARTTLS Support
Connects to the sender domain's MX servers and checks whether STARTTLS is offered in the EHLO response.
IP Blacklist Check
Checks the sending IP against 25 DNS blacklists in parallel — from Spamhaus ZEN to SpamCop and SpamRATS — and shows the return codes of every listing.
Domain Blacklist Check
Checks the sender domain against 6 domain-based blacklists. Domain reputation applies independently of the sending IP.
URL Blacklist Check
Extracts the domains of all links in the email body and checks them against URI blacklists — the area spam filters weight most heavily.
Homograph / IDN Detection
Detects domains with mixed scripts and confusable characters in the sender and links — the technique behind IDN homograph phishing.
Attachment Analysis
Detects dangerous file types, double extensions and macro-enabled Office documents among the message attachments.
Body & Spam Analysis
Analyzes the message body for the spam indicators filters actually score: missing plaintext, tracking pixels, hidden text, shorteners and image-to-text ratio.
Link Verification
Calls every link in the message body and reports dead links, redirect chains, status codes and SSL errors.
Header Analysis
Checks headers SpamAssassin-style: Message-ID, date, MIME-Version, Reply-To mismatch, X-Mailer and subject — including the complete routing path.
MX Record Analysis
Resolves the domain's MX records and analyzes each MX host individually — A records, reverse DNS and FCrDNS.
HELO / rDNS Match
Compares the HELO/EHLO hostname with the sending IP's reverse DNS. A mismatch is one of the most common rejection reasons at large providers.
BIMI Check
Checks whether a BIMI record exists and extracts the configured logo URL. BIMI requires an enforced DMARC policy.
Guides — fix the problems directly
Step-by-step instructions for the most common gaps in an email setup.
Email testing — why it matters
A misconfigured email domain causes messages to land in spam or get rejected entirely. With this free email analysis you can test your deliverability and spot problems instantly.
The mail tester performs a complete SPF check, DKIM check and DMARC check. Your sending IP is additionally tested against 25 blacklists, and a spam test is derived from header analysis, encryption and DNS configuration.
Want to test your email configuration or check your mail server? Just send an email to hello@analyzemy.email. Within seconds you receive an email score and a detailed report with every result — including header analysis, email authentication and a blacklist check.
Since 2024, Google and Yahoo require proper email authentication (SPF + DKIM + DMARC) from all senders. Check now whether your domain meets the requirements.
We only store technical metadata (headers, DNS records, IPs). Email contents and attachments are not stored.