Yes. Guerrillamail.org is a known disposable email service, so block it at signup. Mailboxes expire within minutes and any existing Guerrillamail.org account should be treated as a fraud signal.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
guerrillamail.org publishes 1 MX record. The primary mail exchanger is _dc-mx.1d1000604dfb.guerrillamail.org, hosted by guerrillamail.org, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 1 | _dc-mx.1d1000604dfb.guerrillamail.org | 178.162.170.166 | Reachable |
220 mail.guerrillamail.com SMTP Guerrilla(v1.6.1) #116000787 (115) 2026-06-05T16:10:59ZNo. guerrillamail.org is a disposable email service. Its mailboxes are throwaway and expire within minutes, so addresses on this domain are not safe to accept or send to. Block it at signup and treat existing guerrillamail.org accounts as a fraud signal.
Addresses on Guerrillamail.org are throwaway inboxes that expire within minutes. Accepting them inflates your user count, wastes onboarding spend, and damages sender reputation when the mailboxes bounce.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Disposable signups skew your activation rate, growth metrics, and analytics with users who never come back.
Welcome series and drip campaigns all fire at a guerrillamail.org inbox that has already been discarded.
Throwaway addresses are the standard tool for free-trial farming, multi-accounting, and bot signups.
Mail to expired guerrillamail.org inboxes bounces, and bounce rate is one of the first signals mailbox providers punish.
Guerrillamail.org is disposable email, registered through Cloudflare, Inc. and first seen Nov 29, 2006.
Guerrillamail.org is disposable email, classified as disposable email running on guerrillamail.org. It operates 1 mail server and currently accepts SMTP connections.
Because guerrillamail.org is disposable, every address should be blocked at signup. Mailboxes expire within minutes, so any existing guerrillamail.org account in your database is a strong fraud signal worth removing.
Upload a CSV or TXT list of Guerrillamail.org addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Guerrillamail.org address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
guerrillamail.org is a Guerrilla Mail alias domain for disposable temporary email. Messages self-destruct after one hour.
Yes, this is a Guerrilla Mail alias. Block all Guerrilla Mail domains including guerrillamail.com, sharklasers.com, and grr.la.
Shares infrastructure with all Guerrilla Mail alias domains.
No, these are disposable addresses with one-hour message retention.
Catch-all domain that passes SMTP. Use disposable detection to block.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with guerrillamail.org's mail servers, the same engine that has verified billions of addresses since 2012.
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