Recently I recommended getting away from Outlook Express and Outlook , the two e-mail clients from Microsoft. Outlook Express comes with Windows; the full Outlook client comes with Microsoft Office. Several readers - tired of fighting worms and viruses delivered by these programs - demanded to know their options, so here goes.
Source:
https://www.networkworld.com/article/2319423/security/getting-out-from-under-outlook-part-1.html