[Quarrel]

wtf? it happens all the time.

I've raised VC money based on emailed contracts, bought businesses based on them, bought domain names.

It is incredibly standard and legal (in almost all of the jurisdictions I've worked in, which is a lot).)

[shinigami]

Sure. But what authenticates the contract? Do you sign and scan them?

[icedchai]

PDFs with e-signatures are very common place now. Have you heard of DocuSign or other similar services?

[couchand]

And so it is the e-signature, not the DKIM that matters.

[icedchai]

A signed and scanned PDF is also commonly used, same as an old-school fax-based contract where you sign and send it back. But, yes, the DKIM definitely does not matter for contract purposes.