[ih] Design choices in SMTP (custom emails per recipient)

[Dave Crocker]

> The main reason bulk mail is customized these days is to put in 
> unsubscribe links that let recipients unsub with one click without 
> having to guess what address it was sent to.


The other main reason is to measure things like click-through rates, and 
to send more emails, to bug you for not having clicked through yet.

There might be a few other main reasons.

d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net
mast:@dcrocker at mastodon.social