Double spacing in received emails while using Outlook

Question

Using Outlook 2013 for composing an email, I see that the received email has double spaced. The reason that why Outlook generates such HTML message is explained in various websites, such as

How to Get Rid of Double Spacing in Outlook

Messages are Double Spaced for the Recipient

I tried to disable spacing in the normal style. Please see the picture

But the received email still has double space lines. Note that for signature, I used shift+enter so it is fine.

I am searching for a method other than shift+enter for permanently disabling the double-space option.

UPDATE

Even if I use "no theme", still the problem exists

Answer 1

Is this a solution for you?

Turn off your stationery. Follow this path: [new email] \ Message tab \ Signature button \ Signatures option \ Personal stationery tab\ Theme \ [choose none].

(quoted from Microsoft)