Is zendesk.com a valid email domain?
zendesk.com has working mail routing: 6 MX records pointing to Mimecast, led by us-smtp-inbound-1.mimecast.com.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with ~all. DMARC is set to reject.
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MX records (Mimecast)
| Priority | Mail server | Resolves to |
|---|---|---|
| 0 | us-smtp-inbound-1.mimecast.com | 170.10.128.221, 170.10.128.141 |
| 0 | us-smtp-inbound-2.mimecast.com | 170.10.128.221, 170.10.128.242 |
| 110 | aspmx.l.google.com | 64.233.167.26, 2a00:1450:400c:c0c::1a |
| 120 | alt2.aspmx.l.google.com | 142.251.127.26, 2a00:1450:4001:c21::1b |
| 120 | alt1.aspmx.l.google.com | 192.178.213.27, 2a00:1450:4013:c1e::1b |
| 130 | aspmx2.googlemail.com | 192.178.213.27, 2a00:1450:4013:c1e::1b |
SPF
Record published
v=spf1 ip4:103.151.192.0/23 ip4:104.43.243.237 ip4:149.97.173.180 ip4:163.116.128.0/17 ip4:170.10.128.0/24 ip4:170.10.129.0/24 ip4:170.10.132.56/29 ip4:170.10.132.64/29 ip4:170.10.133.0/24 ip4:18.194.95.56 ip4:18.198.96.88 include:_spf1.zendesk.com ~all
DMARC
Policy: reject
v=DMARC1; p=reject
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
The domain accepts mail, but whether a given person's mailbox exists depends on that organisation. Company domains often have staff who left, role mailboxes like info@ and sales@, and sometimes catch-all rules that accept everything. Verify the individual address before you send.
Sender authentication
zendesk.com has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as zendesk.com must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is zendesk.com a valid email domain?
- Yes. zendesk.com publishes 6 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is zendesk.com a disposable email domain?
- No. zendesk.com is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for zendesk.com?
- us-smtp-inbound-1.mimecast.com (priority 0); us-smtp-inbound-2.mimecast.com (priority 0); aspmx.l.google.com (priority 110); alt2.aspmx.l.google.com (priority 120); alt1.aspmx.l.google.com (priority 120); aspmx2.googlemail.com (priority 130).
- Does zendesk.com have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy reject.