Helm Bank USA: email security grade A

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Helm Bank USA, Miami, Florida, is the 884th largest FDIC-insured US bank by total assets ($1.2bn). On 4 November 2026 the public email records of helmbankusa.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 helmbankusa.com

Check	Result	What was published
MX	Pass	`10 us-smtp-inbound-2.mimecast.com`, `10 us-smtp-inbound-1.mimecast.com`. Mail handled by Mimecast
SPF	Pass	`v=spf1 ip4:199.189.124.10 ip4:199.189.126.10 ip4:69.42.111.117 ip4:152.194.4.131 ip4:152.194.4.117 ip4:149.97.235.100 ip4:149.97.178.65 ip4:8.38.114.22 ip4:8.38.114.23 ip4:149.97.211.192 ip4:64.74.232.10 ip4:20.169.218.11 ip4:52.128.103.21 ip4:52.128.103.23 ip4:52.128.103.24 ip4:74.200.60.181 ip4:74.200.60.178 ip4:74.200.60.158 include:us._netblocks.mimecast.com include:_external.pscu.com include:spf.US.exclaimer.net include:spfref.jackhenry.com include:spf.zohomail360.com -all`. DNS lookups: 6 of 10 allowed; ends -all
DMARC	Pass	`v=DMARC1; p=reject; rua=mailto:infosec@helmbankusa.com; ruf=mailto:infosec@helmbankusa.com; sp=reject; aspf=s; adkim=s; fo=0:1:d:s;`. Policy p=reject, subdomains sp=reject; reports collected (rua= set)
DKIM	Pass, not graded	Key found on selectors k1, s1 (of 10 common selectors tried)

Where Helm Bank USA ranks

Helm Bank USA is the 884th largest FDIC-insured US bank by total assets, at $1.2bn as reported to the FDIC (certificate 32718; Miami, Florida). Among the 999 graded banks, Helm Bank USA ranks 592nd by grade (ties broken by assets, larger first). In its asset band, $1bn to $10bn, it ranks 477th of 846; among the 30 graded banks in Florida, 20th. 66% 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 6 of the 10 allowed. This count is an estimate.
DMARC, pass: Policy p=reject: receivers are asked to refuse mail that fails.
DMARC, info: Reports go to infosec@helmbankusa.com.
DKIM, pass: DKIM key found at k1._domainkey.helmbankusa.com, about 1024-bit RSA.
DKIM, pass: DKIM key found at s1._domainkey.helmbankusa.com, about 2048-bit RSA.

What this means if you sell to Helm Bank USA

Helm Bank USA 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 helmbankusa.com now for today's result. The FDIC's record of the bank is at BankFind, certificate 32718.

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 Helm Bank USA 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