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PlainsCapital Bank, University Park, Texas, is the 136th largest FDIC-insured US bank by total assets ($13bn). On 4 November 2026 the public email records of plainscapital.com graded A: MX pass, SPF pass, DMARC p=quarantine, mail handled by Proofpoint.
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 mxa-001ab001.gslb.pphosted.com, 10 mxb-001ab001.gslb.pphosted.com. Mail handled by Proofpoint |
| SPF | Pass | v=spf1 mx include:spf-001ab001.pphosted.com include:spfhost.messageprovider.com include:mx1.bankserv.com include:spfhost.origenate.com include:_spf.iriscrm.com include:derivativesservicing.com ip4:168.245.117.153 -all. DNS lookups: 10 of 10 allowed; ends -all |
| DMARC | Pass | v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com. Policy p=quarantine; reports collected (rua= set) |
| DKIM | Pass, not graded | Key found on selectors s1, s2 (of 10 common selectors tried) |
PlainsCapital Bank is the 136th largest FDIC-insured US bank by total assets, at $13bn as reported to the FDIC (certificate 17491; University Park, Texas). Among the 999 graded banks, PlainsCapital Bank ranks 102nd by grade (ties broken by assets, larger first). In its asset band, $10bn to $100bn, it ranks 72nd of 122; among the 86 graded banks in Texas, 6th. 69.7% of its band and 76.7% of its state graded A.
The checker's own notes on each record:
PlainsCapital Bank routes inbound mail through Proofpoint, a filtering gateway. Expect strict inbound filtering: a message from a sender whose SPF, DKIM or DMARC fails, or whose domain has little sending history, is unlikely to reach a person. 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 plainscapital.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 17491.
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 PlainsCapital Bank and the records have changed, email moe@roimaxi.com and we will re-check and update this page.
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