§ 01 Tools · no signup · no tracking
Free e-mail and DNS tools.
The same checks I run for every store under support, free and without an account. They read public DNS records and tell you in plain words what to fix. Start with the email security score, the rest are single-problem tools.
§ 02 Tool list
I. Does your store e-mail arrive?Free SPF, DKIM, DMARC, MX, BIMI and MTA-STS check for any domain in one 0-100 score, with fixes ranked by impact. No signup. e-mail report → II. Check your SPF record.Free SPF validator: finds the record, checks syntax, traces includes and counts DNS lookups against the limit of 10. Plain-language result with fixes. → III. DKIM test.Free DKIM tester: scans 44 common selectors or the one you give, reads the public key, checks key length and the test flag. → IV. Check your DMARC record.Free DMARC checker: reads the _dmarc record, checks the p= policy, pct, rua report addresses and the reporting domain authorization. Plain-language result. → V. Check your MX records.Free MX check: inbound mail servers, priorities, missing or null MX, hosts resolving to addresses and provider detection. → VI. Check BIMI.Free BIMI checker: default._bimi record, SVG logo fetch and Tiny PS profile checks, VMC certificate, DMARC prerequisite. Why the logo does not show in Gmail. → VII. Check MTA-STS.Free MTA-STS checker: _mta-sts record, policy file, enforce or testing mode, MX coverage and the TLS-RPT record. → VIII. DNS lookup.Free DNS check: every public record of a domain in one read, A, AAAA, CNAME, MX, NS, TXT, CAA and SOA, with a short comment. → IX. TXT record lookup.Free TXT lookup for a domain and its mail subnames (_dmarc, _mta-sts, _smtp._tls, default._bimi), with each record kind recognised. → X. Check domain reputation.Free check of a domain on Spamhaus DBL, SURBL and URIBL and of its site and MX addresses on IP blocklists. Plain-language result with delisting steps. → XI. Check IP reputation.Free check of an IPv4 address on six blocklists (Spamhaus ZEN, SpamCop, Barracuda, SORBS, PSBL, UCEPROTECT) and its reverse PTR record. →
§ 03 Next step
Result does notlook good?
I set up SPF, DKIM and DMARC and keep watching them as part of store support: from 1,200 PLN net per month, no minimum term. A 20-minute call: Tuesday or Thursday, 18:00-19:00 CET.