Email format: html vs txt vs both

[wakabayashi]

What type do you use in this settings? In the past I had it on "both". But then I noticed, that most user get/answer the html and a few the txt version.

Is there any risk if I just chose html? Will the guys, who received txt before, receive html or nothing at all? 

[30knees]

I've been asking myself the same. But I was thinking of using txt only so every device can read the emails.

[Traumflug]

Text mail is still the safest way to handle email. No automatic execution of anything, no obfuscated links.

Looking at what non-commercial people do with email: they write text and attach documents/images/files. Nothing which would require HTML. That's why my email client is set to text only and those mails containing nothing but "your client is broken, read here..." usually get ignored.

Text-only mails with PDF attachment for delivery slips / invoices / other documents is actually a good idea, IMHO. Efficient and safe.