Coastal Carolina National Bank: email security grade B

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Coastal Carolina National Bank, Myrtle Beach, South Carolina, is the 803rd largest FDIC-insured US bank by total assets ($1.4bn). On 4 November 2026 the public email records of myccnb.com graded B: MX pass, SPF pass, DMARC p=none, mail handled by Proofpoint.

Grade B. One setting does less than it seems to. Read by DNS on 4 November 2026; the records are shown as published.

What was found on myccnb.com

Check	Result	What was published
MX	Pass	`10 mx1-us1.ppe-hosted.com`, `10 mx2-us1.ppe-hosted.com`. Mail handled by Proofpoint
SPF	Pass	`v=spf1 include:myccnb-com.spf.smtp25.com include:safesysmail.com include:spf.protection.outlook.com include:spf.cashedge.com include:_spf-us.ppe-hosted.com include:relay.mailchannels.net a:mail.ebankhost.net ip4:167.89.11.238 ip4:54.84.76.163 -all`. DNS lookups: 10 of 10 allowed; ends -all
DMARC	Warn	`v=DMARC1; p=none; fo=1; rua=mailto:dmarc@myccnb.com;`. Policy p=none; reports collected (rua= set)
DKIM	Pass, not graded	Key found on selectors s1, s2 (of 10 common selectors tried)

Where Coastal Carolina National Bank ranks

Coastal Carolina National Bank is the 803rd largest FDIC-insured US bank by total assets, at $1.4bn as reported to the FDIC (certificate 58864; Myrtle Beach, South Carolina). Among the 999 graded banks, Coastal Carolina National Bank ranks 854th by grade (ties broken by assets, larger first). In its asset band, $1bn to $10bn, it ranks 713th of 846; among the 14 graded banks in South Carolina, 11th. 66% of its band and 64.3% of its state graded A.

What this means for the bank

The checker's own notes on each record:

MX, pass: 2 MX records. 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 10 of the 10 allowed. One more sending service could push it over. This count is an estimate.
DMARC, warn: Policy p=none: receivers are asked to do nothing with mail that fails. Reports are on, so you can see what fails.
DMARC, info: Reports go to dmarc@myccnb.com.
DKIM, pass: DKIM key found at s1._domainkey.myccnb.com, about 2048-bit RSA.
DKIM, pass: DKIM key found at s2._domainkey.myccnb.com, about 2048-bit RSA.

What this means if you sell to Coastal Carolina National Bank

Coastal Carolina National 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.

Check it live

The records above are from 4 November 2026. Run the same check on myccnb.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 58864.

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 Coastal Carolina 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