Re: Text in emails is appearing black on black or white on white
You can take charge and change the text color and / or background color in emails to what you want.
See Format text in emails in Mail on Mac - Apple Support
You may want to experiment with other things you can do to enrich your own workflow / see what works for you.
You can switch between dark and light background styles in the Mail app itself:
See "Use dark backgrounds for messages" in the article below for all the tips:
See how to: Change Viewing settings in Mail on Mac - Apple Support
There are many other options available like always pasting text to the text color you choose for quotes in settings
Eg: You can set the color for quoted text from the article below:
Change Fonts & Colors settings in Mail on Mac - Apple Support
Then Format text in emails in Mail on Mac - Apple Support
Eg: also says:
Copy and paste text
- Go to the Mail app
on your Mac. - Do any of the following:
- Copy all the text in a message: Click to place the insertion point anywhere in the message body (where the text of the message is), choose Edit > Select All, then choose Edit > Copy.
- Paste text: Choose Edit > Paste.
- Paste text using the surrounding style: Choose Edit > Paste and Match Style.
- Paste text as a quotation: Choose Edit > Paste as Quotation. A vertical bar appears next to the text you pasted."
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Useful Resource: Mail User Guide for Mac - Apple Support