Is gustr.com a valid email domain?
Mail for gustr.com is handled by 1 server, with fmg-mail-2.fakemailgenerator.com tried first.
It appears on our list of disposable and throwaway email domains.
SPF is published and ends with -all. DMARC is set to reject.
Check an email address at gustr.com
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 20 | fmg-mail-2.fakemailgenerator.com | 104.237.133.116, 2600:3c00::2000:86ff:febc:9e17 |
SPF
Record published
v=spf1 -all
DMARC
Policy: reject
v=DMARC1;p=reject;sp=reject;aspf=s;pct=100
Disposable?
Yes, listed as a disposable email domain.
Free provider?
Yes, a free public mailbox provider.
What this means for your email list
Should you accept addresses at this domain?
Treat these as low-value. People use gustr.com to avoid giving a real address, so the contact is unlikely to reply, buy or come back. A real-time check at signup stops them before they enter your list.
Sender authentication
gustr.com has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as gustr.com must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is gustr.com a valid email domain?
- Yes. gustr.com publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is gustr.com a disposable email domain?
- Yes. gustr.com is on our list of disposable and temporary email domains, so most services block it.
- What are the MX records for gustr.com?
- fmg-mail-2.fakemailgenerator.com (priority 20).
- Does gustr.com have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.