Great Plains National Bank: email security grade D

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Great Plains National Bank, Elk City, Oklahoma, is the 606th largest FDIC-insured US bank by total assets ($1.9bn). On 4 November 2026 the public email records of gpbankok.com graded D: MX pass, SPF pass, DMARC no record, mail handled by Other.

Grade D. One required record missing or broken. Read by DNS on 4 November 2026; the records are shown as published.

What was found on gpbankok.com

Check	Result	What was published
MX	Pass	`10 p.webcom.ctmail.com`. Mail handled by Other
SPF	Pass	`v=spf1 -all`. DNS lookups: 0 of 10 allowed; ends -all
DMARC	Fail	No DMARC record at _dmarc.gpbankok.com
DKIM	Reported, not graded	No key on any of 10 common selectors. This proves nothing: the bank's real selectors may be any name

Where Great Plains National Bank ranks

Great Plains National Bank is the 606th largest FDIC-insured US bank by total assets, at $1.9bn as reported to the FDIC (certificate 34207; Elk City, Oklahoma). Among the 999 graded banks, Great Plains National Bank ranks 965th by grade (ties broken by assets, larger first). In its asset band, $1bn to $10bn, it ranks 813th of 846; among the 22 graded banks in Oklahoma, 22nd. 66% of its band and 68.2% of its state graded A.

What this means for the bank

The checker's own notes on each record:

MX, pass: 1 MX record. Replies have somewhere to land.
SPF, pass: One SPF record, ending in -all (fail): mail from a server that is not on the list should be rejected.
SPF, info: DNS lookups: about 0 of the 10 allowed. This count is an estimate.
DMARC, fail: No DMARC record at _dmarc.gpbankok.com. Receivers get no instruction for mail that fails SPF and DKIM, and you get no reports.
DKIM, info: No DKIM key at the 10 common selectors tried. That does not mean DKIM is missing. Your email provider picks the selector name, and DNS has no way to list them.

What this means if you sell to Great Plains National Bank

Great Plains National Bank's MX hosts belong to a provider we do not name from host names alone. Assume the inbound server checks SPF, DKIM and DMARC and scores reputation, as every major provider does. Before you send, run your own domain through the email setup checker and publish a policy with the DMARC record generator. For how a bank buys, see the selling to banks playbook.

Check it live

The records above are from 4 November 2026. Run the same check on gpbankok.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 34207.

This page is one of 1,000 in the Bank Email Readiness Index Q4 2026, published 4 November 2026 and re-read every quarter; the next edition is due 2 February 2027. If you work at Great Plains National Bank and the records have changed, email moe@roimaxi.com and we will re-check and update this page.

ROI Maximizer is a trading name of M Ventures LTD, registered in England and Wales, company no. 15554493. Registered office: 4 Beau Street, Bath BA1 1QY, United Kingdom. moe@roimaxi.com