Sep 15, 2015

Gmail couldn't verify that this message was sent by

What does it mean to have this marker on emails for a bank? This will have a negative reputation impact and probably decrease customers' trust. The reputation and trust are the key values for banking business, aren't they?

Why did it happen? Probably because they set up a new SMTP server and forgot to update SPF and DKIM configuration appropriately:

Authentication-Results:;       spf=neutral ( <ip> is neither permitted nor denied by best guess record for domain of <from email>) smtp.mailfrom=<from email>