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The Yellowstone Bank, Laurel, Montana, is the 811th largest FDIC-insured US bank by total assets ($1.3bn). On 4 November 2026 the public email records of yellowstonebank.com graded A: MX pass, SPF pass, DMARC p=reject, mail handled by Microsoft 365.
Grade A. Nothing in the records will stop mail. Read by DNS on 4 November 2026; the records are shown as published.
| Check | Result | What was published |
|---|---|---|
| MX | Pass | 10 yellowstonebank-com.mail.protection.outlook.com. Mail handled by Microsoft 365 |
| SPF | Pass | v=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:mailgun.org include:spfref.jackhenry.com include:_spfdmarc.wte.net ip4:72.175.50.50 ip4:216.220.5.4 ~all. DNS lookups: 10 of 10 allowed; ends ~all |
| DMARC | Pass | v=DMARC1; p=reject; rua=mailto:dmarc@yellowstonebank.com; ruf=mailto:dmarc@yellowstonebank.com;fo=1. Policy p=reject; reports collected (rua= set) |
| DKIM | Pass, not graded | Key found on selectors selector1, dkim (of 10 common selectors tried) |
The Yellowstone Bank is the 811th largest FDIC-insured US bank by total assets, at $1.3bn as reported to the FDIC (certificate 1978; Laurel, Montana). Among the 999 graded banks, The Yellowstone Bank ranks 546th by grade (ties broken by assets, larger first). In its asset band, $1bn to $10bn, it ranks 431st of 846; among the 7 graded banks in Montana, 5th. 66% of its band and 85.7% of its state graded A.
The checker's own notes on each record:
The Yellowstone Bank receives mail through Microsoft 365, whose Exchange Online Protection checks every inbound message's SPF, DKIM and DMARC and scores the sender's reputation. A clean, warmed sending domain is the minimum; a failed check lands in junk or is dropped. 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.
The records above are from 4 November 2026. Run the same check on yellowstonebank.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 1978.
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 The Yellowstone 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
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