indexo.dev

postmansmtp.com

.com crawl

First seen 2026-05-07 · Last seen 2026-05-14 · ok HTTP/1.1 200 1494 ms crawled 2026-05-14

US · 199.16.173.146 · AS2635 Automattic, Inc

Reputation 100/100

Classifying

HTML metadata

Title
Best WordPress SMTP Plugin to Improve Email Delivery | Post SMTP
Description
The best WordPress SMTP plugin to improve email delivery with 18+ SMTP integrations, email logs, instant failure alerts, backup SMTP, and diagnostic tools.
Language
en-US
Generator
WPML ver:4.9.2.1 stt:1,2;
Canonical
https://postmansmtp.com/
Translations
  • en
  • es

Open Graph

url
https://postmansmtp.com/
title
Best WordPress SMTP Plugin to Improve Email Delivery | Post SMTP
locale
en_US
site name
Post SMTP
description
The best WordPress SMTP plugin to improve email delivery with 18+ SMTP integrations, email logs, instant failure alerts, backup SMTP, and diagnostic tools.
locale:alternate
es_ES

Technology

Server
nginx
CMS
WordPress
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Third-party hosts loaded (11)
  • postmansmtp-live.s3.amazonaws.com×72
  • fonts.googleapis.com×3
  • s3.amazonaws.com×3
  • www.googletagmanager.com×3
  • checkout.freemius.com×2
  • stats.wp.com×2
  • www.google.com×2
  • fonts.gstatic.com×1
  • gmpg.org×1
  • phpstack-1080859-5686803.cloudwaysapps.com×1
  • www.facebook.com×1

Social

Registration

Registrar
GoDaddy.com, LLC
Created
2017-10-11
Expires
2026-10-11 144 days left
Updated
2024-08-06
Name servers
  • ns53.domaincontrol.com
  • ns54.domaincontrol.com

DNS records live

NS
  • ns53.domaincontrol.com
  • ns54.domaincontrol.com
MX
  • 10 mx1.emailsrvr.com
  • 20 mx2.emailsrvr.com
  • 32767 ms45548549.msv1.invalid
TXT
Show 6 TXT records
  • google-site-verification=miGukv0fT1FXJZ6tq_egTtytscq17g7harKB8IUdJAE
  • eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJkb21haW4iOiJwb3N0bWFuc210cC5jb20iLCJleHAiOjE2NjcxNzQ0MDB9.Doi49jKxET7rM6txsjd-Nn3lRY1r8g8inkScRX4Dxrc
  • brevo-code:90fc53f9d086f23ebb34997d24d8a2e6
  • google-site-verification=jFOzLfkdMblyW-hdpAS4magStuZTgajovZcl_KWeUtw
  • v=verifydomain MS=4055237
  • MS=ms45548549

Email authentication strong

SPF
v=spf1 include:emailsrvr.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@mailtest.ai,mailto:dmarc_agg@vali.email;
policy: quarantine
DKIM
Show 4 DKIM selectors
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1PjW9i4SZqQ9kGovYCTvmYbAGc0EvSwyl04hn7LFV+GxN1H/xPfYbOLnvjfMBouMxCfTBS361NwyWNwiiY…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/xZjsY0VKiEUNX/RJZLF+P2BECN+T9+pVwRqcT3uQPhYdP7WEPTSy1YX/il/ruBrIhln3IXbFxlXUADN4fuOFP+…
selectors probed

Certificate (current)

WR1
from 2026-05-11 to 2026-08-09
Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://postmansmtp.com/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (12)

Linked from (2)