I don't believe that would be true except for local businesses that are selling a commodity. Those who hope to convert me into a repeat customer based on the quality of their donuts or haircuts will do it after one visit.
The same reasoning for websites periodically sending their users emails is at work here. Remember how Facebook used to send email notifications that you've received a new Facebook message, but wouldn't tell you the content of that message in the email? "Hey, we have more goodies back here - come visit again."
My wife's favorite spa has also figured out that sending me follow-on ads is a pretty effective sales pitch, as I semi-routinely say 'hey, she deserves another half-day at the spa.' They got my email address from an initial online sale.
I don't get any follow-on advertising from donut places, but there's a local restaurant who uses email to fill out slow nights with some really nice prix fixe dinners. Every now and then one shows up in my inbox, sounds delicious, and I don't feel like cooking, and they make an additional sale. They started doing so after I made a reservation on OpenTable, and our dining frequency jumped substantially.