How to increase font size in outlook 2010 emails

In Internet Explorer, choose Tools | Internet Options.To set the default HTML font in Outlook 2003 and older: In Word 2007, click the Office icon, then Options > Advanced > General > Web Options button > Fonts. In Word 2010 and newer, go to File > Options > Advanced > General > Web Options button > Fonts and select a different font. When a default font is not included in an HTML message, Outlook uses the default web font. To set the default HTML font in Outlook 2007 and newer: Messages that don't have a default font set use the default Web Font set in Microsoft Word Options. You cannot easily control the font used to read HTML messages, since most people who send HTML mail specify the font they want their messages to appear in. Click OK until you return to the main Outlook window.Д¬hange the Font on Incoming HTML Messages.On the Fonts dialog, make your selection with the Choose Font button under When composing and reading plain text.Make sure the Use Microsoft Word to edit e-mail messages box is not checked.Choose Tools | Options, and switch to the Mail Format tab.To change the plain text font settings in Outlook 2007 and older: The Stationery and Fonts button is near the top of the Mail pane.Д¬hoose your desired font and font size from this dialog. In Outlook 2010, Outlook 2013, and Outlook 2016 this dialog is at File, Options, Mail. It applies to both messages sent as plain text and HTML messages that you choose to read as plain text. This font is used both in open messages and in the reading pane. The bottom setting on this dialog is the font used for plain text messages and replies. The middle two options, for New mail messages and Replies and Forwards, controls the default fonts used for HTML and RTF messages and apply only to messages you send. In Outlook 2007 and newer, you can change the fonts used for reading plain text messages from the Stationery and Fonts dialog in Options. Plain Text | HTML | Rich Text | WordMail | More Information Outlook 2010 and newer See Adjusting Outlook's Zoom setting for more information.

Instead of changing the font in messages, you can adjust the Zoom.

How to increase font size in outlook 2010 emails