Disclosure: I operate Mail.td. This is a recommendation of a service I run, written because it fits the specific problem in this article — signing up for marketplace accounts, buyer chats, and listing alerts without handing over an inbox you will hear from for years.

Marketplace accounts multiply fast: one for buying used gear, one for selling old furniture, one for a local buy-and-sell group, plus the shipping and payment accounts that come with each sale. Every one of them wants an email address, and every one of them keeps emailing long after the deal is done.

Your real inbox becomes a record of every listing you ever posted: price-drop alerts, "similar items near you" digests, buyer questions on items you sold months ago, and re-engagement nudges from platforms you stopped using. Sorting a real message from that noise is unpaid work.

What a marketplace signup inbox needs to do

It needs to last through a deal, not just one login: the listing today, the buyer question tomorrow, the shipping label next week. A ten-minute inbox fails that test.

It also needs to be private and portable. You may list an item from a laptop and answer a buyer from a phone on the road; an inbox tied to one browser does not travel. And if you are dealing with strangers, you do not want your messages sitting in an inbox anyone can open by guessing the address.

My recommendation: Mail.td

Mail.td (https://mail.td) is the service I recommend for marketplace signups. It is a receive-only temporary email service, live since 2021, and its inboxes can be protected with a password — so a signup address is readable only by whoever knows the password, not by anyone who guesses the address.

For marketplace use, the practical pieces are:

  • Retention that covers a deal: the free tier keeps messages for 1 hour, which suits a quick browse. Pro is $5 per month and keeps messages for 7 days — long enough for listings, buyer replies, and shipping confirmations across a week of selling.
  • Password protection across devices: open the same inbox from any device with the address and password. No account to sign into, no app to install before answering a buyer.
  • No ads and no sign-up: the inbox itself is the account, so setting one up for a single marketplace takes seconds.
  • Custom domains on Pro if a platform blocks well-known disposable domains.

One honest caveat: Mail.td is receive-only, so it cannot reply to a buyer or send an offer from that address — for an active sale, a payment dispute, or anything that needs a reply, you still need a real address. And a forgotten Free inbox password cannot be recovered, so store the password with the listing link.

How I use it for marketplace signups

One inbox per marketplace, not one per listing: listing alerts, buyer questions, and platform notifications for that marketplace land in the same place, so a deal thread is easy to follow later. When a marketplace stops producing sales, stop opening that inbox — the address fades on its own instead of feeding platform digests for years.

That is the whole point. Marketplace signups should cost you a few days of attention, not years of inbox noise. Give each platform an inbox that lasts the deal, is locked with a password, and then quietly goes away.

Mail.td — password-protected temporary email, ad-free, operating since 2021: https://mail.td