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If you're sending messages from a financial institution, you shouldn't EVER be failing authentication. ESPECIALLY if you're asking recipients TO CLICK A LINK.
Why? Having a malicious domain that authenticates all over the place is trivial, and is not how phishing is determined (Despite what the DMARC sellers may tell you).
It may not be "how phishing is determined," but failing authentication should be a quick means of determining that something isn't right.
Authentication is ok, other data is more timely and better S:N, getting any large corporation properly authenticated is very difficult, and cousin (look-alike domains) autheticate perfectly well. Spamtraps, user complaints, logs (web and mail), passive DNS and SSL Cert logs 1/2
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