Is startmail.com a valid email domain?
startmail.com has working mail routing: 4 MX records pointing, led by mx1.startmail.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 quarantine.
Check an email address at startmail.com
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | mx1.startmail.com | 145.131.90.133, 2a02:22a0:bbb6:1d00::1001:25 |
| 10 | mx2.startmail.com | 145.131.90.149, 2a02:22a0:bbb6:1d00::1002:25 |
| 20 | mx3.startmail.com | 89.146.36.66, 2a02:22a0:bbb6:1d00::1003:25 |
| 30 | mx4.startmail.com | 89.146.36.82, 2a02:22a0:bbb6:1d00::1004:25 |
SPF
Record published
v=spf1 include:spf.startmail.com include:mail.zendesk.com ~all
DMARC
Policy: quarantine
v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; pct=100
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
startmail.com uses a DMARC quarantine policy: mail that fails authentication is sent to spam. That is a sound middle step, and a good sign the owner looks after their email setup.
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Sign up to get a report summary →Frequently asked questions
- Is startmail.com a valid email domain?
- Yes. startmail.com publishes 4 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is startmail.com a disposable email domain?
- No. startmail.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 startmail.com?
- mx1.startmail.com (priority 10); mx2.startmail.com (priority 10); mx3.startmail.com (priority 20); mx4.startmail.com (priority 30).
- Does startmail.com have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy quarantine.