In text of email is good.

Working links are good.

All attachments suck.

I blog mostly off my phone now (yes, I type incredibly fast), and I just junk the attachments and the cryptic link-only emails.

I need a hint, or an excerpt, or the text. I need to be able to process the whole email in about 30 seconds.

Any longer is too long, given the several hundred substantive emails I get in a day.