City National Bank of Florida: email security grade A

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City National Bank of Florida, Miami, Florida, is the 70th largest FDIC-insured US bank by total assets ($29bn). On 4 November 2026 the public email records of citynational.com graded A: MX pass, SPF pass, DMARC p=reject, mail handled by Mimecast.

Grade A. Nothing in the records will stop mail. Read by DNS on 4 November 2026; the records are shown as published.

What was found on citynational.com

Check	Result	What was published
MX	Pass	`10 us-smtp-inbound-1.mimecast.com`, `10 us-smtp-inbound-2.mimecast.com`. Mail handled by Mimecast
SPF	Pass	v=spf1 ip4:12.108.255.69 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 ip4:52.230.228.145 ip4:52.230.228.146 ip4:208.235.248.20 ip4:52.128.98.34 ip4:52.128.98.35 ip4:52.128.98.36 ip4:69.63.101.253 ip4:69.63.101.254 ip4:12.129.29.143 ip4:206.107.78.244 ip4:208.185.229.0/24 ip4:208.86.168.7 ip4:208.185.235.0/24 ip4:148.59.108.0/23 ip4:148.59.106.0/23 ip4:174.140.138.245 ip4:65.119.189.250 ip4:50.205.105.51 ip4:212.118.244.150 ip4:13.111.92.190 a:monitor.ensenta.com include:spfref.jackhenry.com include:part1.digitalinsight.com include:bmsend.com include:us._netblocks.mimecast.com include:spfhost.messageprovider.com include:sendgrid.net -all. DNS lookups: 8 of 10 allowed; ends -all
DMARC	Pass	`v=DMARC1; p=reject; pct=100; rua=mailto:fc7c79c92902726@rep.dmarcanalyzer.com; ruf=mailto:fc7c79c92902726@for.dmarcanalyzer.com; fo=1;`. Policy p=reject, applied to 100% of mail; reports collected (rua= set)
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 City National Bank of Florida ranks

City National Bank of Florida is the 70th largest FDIC-insured US bank by total assets, at $29bn as reported to the FDIC (certificate 20234; Miami, Florida). Among the 999 graded banks, City National Bank of Florida ranks 59th by grade (ties broken by assets, larger first). In its asset band, $10bn to $100bn, it ranks 29th of 122; among the 30 graded banks in Florida, 3rd. 69.7% of its band and 73.3% 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 8 of the 10 allowed. One more sending service could push it over. This count is an estimate.
DMARC, pass: Policy p=reject: receivers are asked to refuse mail that fails.
DMARC, info: Reports go to fc7c79c92902726@rep.dmarcanalyzer.com.
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 City National Bank of Florida

City National Bank of Florida routes inbound mail through Mimecast, 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 citynational.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 20234.

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 City National Bank of Florida 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