postfix.org
The Postfix Home Page
postfix.org is registered with Tucows Domains Inc. since November 5, 1998 (28.0 years). The registration expires on November 4, 2027. The site runs on Nginx. Its email security grade is F. Its SSL certificate is issued by Let's Encrypt and is valid for 79 more days.
- Domain age
- 28.0 yrs
- Technologies
- 1
- Email security
- F
- SSL days left
- 79
Registration
| Registrar | Tucows Domains Inc. |
|---|---|
| IANA ID | 69 |
| Registered | November 5, 1998 |
| Expires | November 4, 2027 |
| Updated | November 1, 2026 |
| Status | client transfer prohibited, client update prohibited |
| Name servers | ns1.desec.io, ns2.desec.org |
| DNSSEC | Signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 95.216.145.1 | 3600 |
| MX | list.sys4.de 10 | 3600 |
| NS | ns1.desec.io | 3600 |
| NS | ns2.desec.org | 3600 |
| TXT | v=spf1 include:_spf.list.sys4.de ~all | 3600 |
| AAAA | 2a01:4f9:c010:8fb::bee | 3600 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YE1, Let's Encrypt |
| Expires | January 29, 2027 |
| Days remaining | 79 |
| Protocol | TLSv1.3 |
| Names | postfix.org, www.postfix.co.uk, www.postfix.com, www.postfix.net, www.postfix.org, www.postfix.org.uk |
Email security
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- good1 MX record(s) found.
Homepage metadata
| Title | The Postfix Home Page |
|---|---|
| Indexable | Yes |
| Word count | 178 |
About postfix.org
Who is the registrar of postfix.org?
postfix.org is registered with Tucows Domains Inc. (IANA ID 69).
When does postfix.org expire?
The current registration of postfix.org expires on November 4, 2027. It was first registered on November 5, 1998.
What technology does postfix.org use?
We detected 1 technologies on postfix.org, including Nginx.
Does postfix.org protect its email with SPF and DMARC?
postfix.org scores 28/100 (grade F) for email security. No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of postfix.org?
postfix.org uses ns1.desec.io, ns2.desec.org.