Sponsor of the Day:
Jerkmate
https://site.pro/lt/DUK/Kas-yra-DNS-SPF-įrašas/
Kas yra DNS SPF įrašas? - Site.pro
SPF - DNS tipo įrašas, naudojamas el. paštui. Jis naudojamas domeno nustatymuose ir jame pateikiama informacija apie serverius, iš kurių savininkas leidžia...
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https://www.afnic.fr/observatoire-ressources/papier-expert/protegez-vos-e-mails-grace-au-dns-spf-dkim-dmarc/
Protégez vos e-mails grâce au DNS (SPF, DKIM, DMARC)
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https://www.spf-record.com/service/anycast-dns
Anycast DNS - SPF-Record
Anycast DNS - fast and high-availability
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https://autospf.com/spf-record-format/
SPF Record Format: A Complete Guide for DNS Configuration | AutoSPF
Understand the SPF record format — version, mechanisms, qualifiers, and modifiers. Learn how to structure your SPF TXT record for proper email authentication.
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https://autospf.com/blog/spf-flattener-supporting-rate-limits-and-change-windows-dns-control/
Is There An SPF Flattener That Supports Per-Sender Rate Limiting Or Change Windows To Avoid DNS...
Apr 18, 2026 - Yes—“per-sender rate limiting” for SPF flattening is not a common, publicly advertised feature; a few platforms support scheduled publishing or change windows.
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https://dnsrobot.net/spf-checker
SPF Checker — Validate SPF Records Online | DNS Robot
Free SPF checker to validate SPF records. Check DNS lookup count, resolve include chains, verify RFC 7208 compliance, and get an SPF health score.
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https://manytools.org/network/query-dns-records-online/
Test DNS server records online (query A, AAAA, CNAME, MX, PTR, SPF, SRV, NS, TXT, or all available)
Query a DNS server on IP Addresses and Domain Names. Query DNS for MX, TXT, SPF, SRV, SOA and more.
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https://autospf.com/blog/spf-mechanism-ordering-sequence-impact-on-deliverability-and-dns-limits/
SPF Mechanism Ordering: How Sequence Impacts Email Deliverability and DNS Lookup Limits | AutoSPF
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https://purely.website/support/dns/adding-spf-records/
How to add an SPF record to your domain name registration's DNS
Sep 19, 2025 - Adding SPF Records - How to add an SPF record to your domain name registration's DNS to authorise emails that are allowed to send your emails.
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https://autospf.com/blog/what-best-practices-spf-record-example-avoid-dns-lookup-limits/
What are the best practices illustrated by an SPF record example to avoid DNS lookup limits? |...
Apr 18, 2026 - The best practices to avoid SPF DNS lookup limits are to use only necessary lookup‑triggering mechanisms, prefer ip4/ip6 literals and CIDR ranges.
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https://autospf.com/spf-too-many-dns-lookups/
SPF Too Many DNS Lookups - How to Fix It | AutoSPF
Exceeding the SPF 10-DNS-lookup limit causes a permanent error (permerror) that breaks email authentication. Learn why it happens and how SPF flattening fixes...
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https://nic.ua/en/domains/tools
Domain & IP Check Tools Online — RDAP, DNS Records, MX/SPF/DKIM, DNSBL, IP Geolocation
Online tools for domains and IPs: RDAP (WHOIS alternative), DNS record lookup, MX/SPF/DKIM checks, DNSBL spam-list check, and IP geolocation by country and...
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https://help.getvero.com/vero-1/settings/dns-records-spf-dkim-dmarc-a-ptr
DNS Records (SPF, DKIM, DMARC, A, and PTR) - Vero Help Documentation
Understand how SPF, DKIM, DMARC, A, and PTR records work together to authenticate your email sending.
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https://autospf.com/blog/why-spf-record-checkers-report-too-many-dns-lookups/
Why do SPF record checkers report "too many DNS lookups" and how does that affect delivery? |...
Apr 18, 2026 - SPF record checkers report “too many DNS lookups” because the SPF standard (RFC 7208) limits SPF evaluation to 10 DNS-querying mechanisms (include, a, mx, ptr.
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https://autospf.com/blog/reduce-dns-lookups-spf-avoid-exceeding-lookup-limits-guide-best/
How can I reduce DNS lookups reported by an SPF lookup to avoid exceeding limits? | AutoSPF
Apr 18, 2026 - You reduce DNS lookups in SPF by replacing lookup-heavy mechanisms (include, a, mx, ptr, exists) with explicit ip4/ip6 entries.
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https://autospf.com/blog/invisible-spf-failures-misconfigured-dns-entries-are-costing-enterprises-millions/
Invisible SPF failures: How misconfigured DNS entries are costing enterprises millions! | AutoSPF
Apr 18, 2026 - There’s a common misconception among domain owners when it comes to email authentication protocols— we have configured SPF, DKIM, and DMARC.
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https://dns-lookup.com/email
Email Deliverability Checker - SPF, DKIM & DMARC Validation | DNS Lookup | DNS Lookup
Check email authentication records including SPF, DKIM, and DMARC. Improve email deliverability and prevent spoofing. Free email security checker.
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