Overleaf is the online LaTeX editor most students and researchers meet first, and its free plan is genuinely usable — unlimited projects, the full template gallery, no card. A temp mail inbox opens that plan in minutes. The catch is the one this whole page turns on: a paper is a months-long project, and the account that holds it should outlive the inbox that created it. That tension — a quick start against a months-long project — is what temp mail for overleaf is really about.
Overleaf's register page offers several ways in: an email address and password, a Google account, an ORCID account, or login through your institution. The email route is the one a temp inbox fits. According to 2026 guides, you enter your email and a password, verify the address, and the free plan is yours — $0, unlimited projects, and access to the whole template gallery, with the paid plans buying longer compile times, more collaborators, and team features.
That free plan is more generous than most tools offer, and that generosity is exactly why the signup decision deserves a minute of thought. On a tool with a thin free tier, the throwaway account costs you nothing to abandon. On Overleaf, the free tier is good enough to write a real paper in — which means a throwaway account can quietly become the home of real work before you notice.
Whether Overleaf accepts a disposable domain at all is unconfirmed: we found no public statement from Overleaf on it, and we did not create an account to test it. If the register form refuses the first address you try, switch to another TempoMailUSA domain — the service serves 427 in total, one free and 426 premium — and try again. A refusal usually means that one domain is blocked, not that every disposable address is.
Your documents live in the Overleaf account, not in the signup inbox. The inbox only proves you own the address at the moment of registration. After that, the account is the thing: your projects, your collaborators, your compile history. If the signup address expires and you later need a password reset, the reset link goes to an inbox nobody can open. A CV you compiled once is a shrug. A thesis with three months of edits is a different story.
The free plan's limits shape the risk too. According to a 2026 guide citing Overleaf's own plan-limits page, the free plan caps compiles at 10 seconds, allows one collaborator per project, and keeps 24 hours of history. Short papers and CVs compile well inside ten seconds; a long thesis with high-resolution images may not, and the same guide says that is the limit free users notice first. If you hit it, the answer is a paid plan — and paid plans, billing mail, and Git integration all belong on a permanent address.
Many universities provide Overleaf Professional through an institutional licence, and claiming it means verifying an institutional email address — something a disposable address can never do. Guides from Harvard, Erasmus University Rotterdam, and the Institute for Advanced Study all describe the same route: sign up with your university email and the upgrade follows. If you are a student or a researcher, that free upgrade is worth more than any temp inbox. Check your institution's library or IT pages first.
Collaboration adds a second reason to think twice. On the free plan you can invite one collaborator per project, and that person works on your document in real time. If your account is tied to a dead inbox and the collaboration breaks — a lost password, a re-confirmation request — your co-author is locked out with you. Shared work deserves a shared, reachable owner.
The free plan is good for learning LaTeX, for a short paper, for a CV, for trying a journal template before a deadline, and for checking whether Overleaf's editor suits you better than a local install. All of those are single-sitting or short-lived jobs, and a temp inbox fits them neatly: it keeps Overleaf's onboarding mail out of your real inbox, and nothing of value is left behind when it expires.
It is not good for a thesis, a multi-author paper, a document you will revise for months, or anything tied to a university licence. For those, use the institutional email if you have one, or a permanent personal address if you do not. The cost of doing it right is one real email address; the cost of doing it on a throwaway is the paper itself.
One practical habit covers both cases: keep a local copy. Overleaf lets you download your project source, and the free plan's 24-hour history means an accidental deletion is only recoverable for a day. Whatever address you sign up with, download the source regularly. A paper that exists in exactly one place is a paper at risk.
Unconfirmed. We found no public Overleaf statement on disposable domains, and we did not create an account to test it. Registration takes an email and password with verification, so a temp address fits the flow — but if the domain is refused, try another TempoMailUSA domain or use a permanent address.
Yes, for the free plan: $0, unlimited projects, and the full template gallery, according to a 2026 guide citing Overleaf's own plan-limits page. The limits are a 10-second compile timeout, one collaborator per project, and 24 hours of history. Paid plans lift those caps.
The documents stay in the Overleaf account; they are not deleted when the inbox expires. The risk is access: password resets and account notices go to the signup email, so an expired inbox can lock you out of a paper you spent months on. For any document you will need again, use a permanent address — and download your project source regularly.
Open TempoMailUSA, copy the address on screen, and enter it in Overleaf's signup form. No account needed to start.
Get a Temp Mail Inbox →Guide checked 7 November 2026. Overleaf's signup options and plan limits come from 2026 guides citing Overleaf's own pages. TempoMailUSA lists 427 domains — 1 free and 426 premium — free to try, with paid plans from $4.19 a month.