Gmail Now Prominently Marks Emails Sent Without TLS

Now here's a prominent red mark in Gmail for each email sent by sender whose infrastructure doesn't support TLS:

What a smart move to efficiently promote using TLS among senders - as no one wants their emails to have that red mark.

Why You Should Always Store And Process Email Addresses In Lowercase

Emails Of Cell Phone Service Provider Marked With This: Be careful with this message. It contains content that's typically used to steal personal information.

Earlier I wrote about email authentication problems of one of my banks.

Now I've seen a pretty much similar problem with my cell phone provider monthly email:

Of course this problem can be solved. The question is if your business has a person in charge of email marketing or not. For a company with tens of thousands of employees it's a must.

Another wrong thing with this email is I can't see anything in an attached PDF file on my Mac: