by not charging for support when having simple problems with Yahoo mail

You should make note of the exception for those using Linux based systems. They're pretty much hack-proof systems after all. Even trying to find an antivirus for those systems are pretty much like finding a needle in a haystack. Stating that people should have an antivirus may make new users to Linux waste a lot of time trying to find one when it's not needed, if they keep their systems up to date.

Provide HELP

Do include https://pandaily.com/ as a news source in Yahoo News. Equipped with a deep understanding of China’s technology landscape and the unicorns that drive its innovation, they are committed to delivering premium content with contextual insights on Chinese technology, business, sports and culture to world community that other English news don’t always cover. Also, they have a specific focus on North American and Asian readers. Their ranking keeps rising among publications covering China on Techmeme on the whole. This site is really worth adding to Yahoo News.
Here is one of their news. Please have a look. Thanks!
https://pandaily.com/tiktoks-global-marketing-head-nick-tran-fired-after-bytedance-founder-loses-patience-with-repeated-cheap-stunt-marketing/

I want to set up my time stamps on my email to reflect WHEN and in what time zone they actually come from without being sent ADVERTISEMENT based on my location.

It is a pain to have to make sure I enter my BASIC time stamp which WILL conflict, to the minute, with the time stamp yahoo provides.

Provide accurate 'help' information and make it possible to actually contact a real person. Perhaps add an on-line chat option like other companies do.