SPF / DKIM / DMARC Check

Check SPF, DKIM and DMARC records to improve email deliverability.

Example: uzmantescil.com.tr google.com

E-posta kimlik doğrulama

gmail.com

SPF

v=spf1 redirect=_spf.google.com

DMARC

v=DMARC1; p=none; sp=quarantine; rua=mailto:mailauth-reports@google.com

DKIM

Yaygın seçicilerde yok

MX kayıtları

5 gmail-smtp-in.l.google.com
10 alt1.gmail-smtp-in.l.google.com
20 alt2.gmail-smtp-in.l.google.com
30 alt3.gmail-smtp-in.l.google.com
40 alt4.gmail-smtp-in.l.google.com

All tools Look Up

Why SPF, DKIM and DMARC are read together

All three tell a receiving server whether mail from your domain is genuine. SPF names the allowed senders, DKIM signs the message, and DMARC sets the policy when the other two fail. The bars show whether each record exists: full if published, empty if not. The score summarizes the set.

Gmail and Yahoo expect these records from bulk senders. A missing SPF is enough to push ordinary company mail into spam as well.

Record	Job	Healthy ending
SPF	Who may send	Ends in ~all or -all
DKIM	A signature	The selector is published in DNS
DMARC	Policy when checks fail	Start at p=none, then quarantine or reject
MX	Inbound mail server	Priorities in the right order

Do not jump straight to reject

p=none only collects reports. It does not block mail. Turning on p=reject before every legitimate source (hosting, invoices, newsletters) is aligned with SPF and DKIM will also block your own mail. Write SPF so it includes every sender, enable DKIM on each service, read the reports, then tighten the policy. The tool looks for common DKIM selectors. If you use a custom name, confirm it in the mail panel.

Frequently asked questions

What are SPF, DKIM and DMARC?

SPF lists sending IPs, DKIM signs the message, and DMARC sets the rule when those checks fail.

What do the bars mean?

Whether each record is published. Length is presence, not a finer safety grade.

What does “DKIM not found” mean?

No record on the common selectors. If you use a custom selector, check the name in the mail panel.

What order should I fix?

SPF first, then DMARC at least at p=none, then DKIM. Reject comes last.

What if MX is empty?

The domain cannot receive mail. The MX section of the DNS lookup will be empty too.

Does this tool read my mailbox?

No. It only reads public DNS.