indexo.dev

opensmtpd.org

.org crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1917 ms crawled 2026-05-18

FR · 140.82.55.15 · AS20473 The Constant Company, LLC

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
OpenSMTPD
Description
the main OpenSMTPD page
Language
en
Canonical
https://www.opensmtpd.org/

Technology

Server
nginx

Social

Registration

Registrar
Scaleway SAS
Created
2005-01-13
Expires
2027-01-13 238 days left
Updated
2026-05-11
Name servers
  • ns-backup.poolp.org
  • ns-primary.poolp.org

DNS records live

NS
  • ns-backup.poolp.org
  • ns-primary.poolp.org
MX
  • 0 mx-in.poolp.org
  • 10 mx-backup.poolp.org
TXT
  • google-site-verification=dzfi4BLVgRIZGcU1XVeLC1TETU8ma5RRDs4RT_TNAaw

Email authentication partial

SPF
v=spf1 redirect=poolp.org
no all qualifier
DMARC
v=DMARC1; p=none; sp=none; pct=100; rua=mailto:dmarc@opensmtpd.org
policy: none (monitoring only) · sp=none
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-28 to 2026-06-26
Expires in 37 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://opensmtpd.org/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (2)