If you are able, try to save the mail message in question as an *.eml file and use a text editor to take a look at the content of this file.
You do this to take a proper look at a mail message. Mail clients can be tricked into showing a sender that isn't the actual sender. I know that Outlook 2013 and 2016 have a p.ss poor excuse of a 'Show message source' option. Even an up-to-date Thunderbird mail client isn't so able to the actual message source. Hence, save it as a *.eml file and take a look at it with a text editor.
Not only will you learn much more about where the message comes from. This site
explains with an example spam message how you should interpret the information shown to you in the message source.
And as MilesAhead already said...never click links in mail messages. Especially not if these messages come from organizations which have access to your bank account. Better log intro the website of such organizations by typing in the URL yourself in a separate browser session, preferably in a virtual machine you created & configured for the sole purpose of logging into your bank.
By clicking on such links you are either whisked away to a malicious look-a-like website that records your bank info or receive malware that does the same.