How not to send password reset notification email
This is more generic: if you do link tracking in your email, do it through your own domain, it's really not that hard, and urls that go through some other business are a huge red flag.Personally, I probably cut people a bit of slack by going through whois to check if the domain belongs to some well-recognized mass mailer, but I wouldn't blame the MUA for just spamming anything that mentions a "login" along with a domain that isn't a descendant of the sender's domain.