Yes. You can verify any @Clickup.com address in real time with a direct SMTP handshake that provides 99.7% accuracy. Clickup.com is operated by ClickUp Inc., runs 5 mail servers, enforces 3 of 3 authentication standards, and is currently responding to SMTP.
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.
clickup.com publishes 5 MX records. The primary mail exchanger is aspmx.l.google.com, hosted by Google Workspace, 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 | aspmx.l.google.com | 142.251.167.26 | Reachable |
| 5 | alt2.aspmx.l.google.com | 172.253.116.26 | Reachable |
| 5 | alt1.aspmx.l.google.com | 108.177.123.27 | Reachable |
| 10 | alt3.aspmx.l.google.com | 192.178.223.27 | Reachable |
| 10 | alt4.aspmx.l.google.com | 173.194.76.27 | Reachable |
220 mx.google.com ESMTP 6a1803df08f44-8ccea29914fsi107755926d6.634 - gsmtpYes. clickup.com is a valid email domain, operated by ClickUp Inc.. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Clickup.com's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
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.
People leave companies. Verification flags clickup.com mailboxes deactivated since you collected them.
Expired or full clickup.com inboxes hard-bounce. A live SMTP check catches them before you hit send.
Low bounce rates keep you trusted by clickup.com mail servers and the major mailbox providers.
Verified contacts mean your CRM, lead scoring, and routing all run on addresses that reach a person.
Clickup.com is ClickUp Inc., registered through Amazon Registrar, Inc. and first seen Jul 5, 2001.
ClickUp Inc. (clickup.com) is a productivity platform company headquartered in San Diego, California. ClickUp provides an all-in-one project management, docs, goals, and chat platform used by teams for task management, time tracking, and workflow automation. The platform serves hundreds of thousands of teams worldwide.
ClickUp implements email authentication on the clickup.com domain with SPF, DKIM, and DMARC enforcement. As a productivity platform, ClickUp faces phishing threats from campaigns impersonating workspace notifications, task assignments, and team collaboration alerts.
SMTP verification of clickup.com addresses returns definitive responses for valid and invalid mailboxes. The domain does not function as catch-all. ClickUp's mail infrastructure implements rate limiting on inbound SMTP connections.
For partners communicating with ClickUp employees, proper sender authentication improves deliverability. ClickUp's corporate email filters enforce SPF, DKIM, and DMARC validation. Authentication compliance ensures reliable inbox delivery to clickup.com addresses.
Upload a CSV or TXT list of Clickup.com 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 Clickup.com 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.
Yes, clickup.com is the official corporate email domain for ClickUp Inc.. It is used for internal business communications and is not available for public registration.
No, clickup.com is a corporate email domain belonging to ClickUp Inc., used exclusively by employees and authorized personnel.
clickup.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
B2B marketing to clickup.com requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.
Corporate domains like clickup.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.
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 clickup.com's mail servers, the same engine that has verified billions of addresses since 2012.
Other corporate email domains we have audited.