Postmark.com Suspicious Website

June 16, 2026 at 1:56 AM

Suspicious Website

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Checked by Website Reputation Checker

Table of Contents

Danger Zone

Risky Territory

Caution Advised

Trusted but Verify

Safe & Secure

Postmark → Safety Check

First checked July 18, 2025 at 9:57 PM

Website content and technical signals analyzed

Method: automated checks.

Suspicious Website This site is classified as Suspicious Website based on multiple risk signals, including additional risk indicators in the site analysis.

Figure 1. Trust signal radar for postmark.com. Larger shaded area indicates stronger trust signals.

How we scored postmark.com

Tech signals:

Helpdesk, Link Shortener, X/Twitter Ads, Corporate Registration

Negative signals:

a redirect to another domain (postmarkapp.com)
unclear social-profile authenticity
caution from external review sources
limited independent reputation data

Positive signals:

no major malware/phishing detections
a long-term domain history (30.2 years)
an active SSL certificate (3 months)

Final destination:

https[:]//postmarkapp.com/

29 /100

Trust Score

30.2 years

Domain Age

Location

Last checked June 16, 2026 at 1:56 AM by Gridinsoft Trust Model v2.4.8

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What is Postmark?

Our system marks Postmark.com as suspicious. The decision is based on a cluster of weak trust signals, not one isolated event.

Examples we frequently observe in this group: ownership data that cannot be verified, support pages with no workable contacts, reused template content, and redirects/scripts that do not match the visible site purpose. Each item alone may be explainable. Together, they increase user risk.

Recommended handling: treat this domain as untrusted. View pages only, avoid sign-in, avoid payments, and do not download files unless the source can be independently confirmed.

Think something is off with Postmark.com?

Help others stay safe. Share your story to help the next visitor make an informed decision.

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This domain was registered 30 years ago through the company MarkMonitor, Inc. and ownership information is not publicly available.

For complaint

Is postmark.com safe?

— Unfortunately, not likely.

🚨 Gridinsoft blocks this website because it was classified as suspicious website.

No. Based on current analysis, postmark.com falls in Risky Territory and should not currently be treated as a safe website; strong independent verification is needed before relying on it.

Why is postmark.com marked "Suspicious Website"?

Gridinsoft evaluates postmark.com, focusing on limited website popularity, suspicious content indicators (Fake Social Media Links - Risk), hosting technology and infrastructure, SSL certificate status, website reputation across multiple databases, customer reviews from various independent platforms (2 reviews). We weigh these indicators to calculate the trust score.

Note: Automated systems are not perfect — while the evidence suggests risk, there is still a chance the site is legitimate. We recommend you check the website using detailed analysis or by contacting the company directly through verified channels.

Gridinsoft Anti-Malware

Stay safe with Gridinsoft Anti-Malware: Protect your browser, remove harmful extensions, and secure your privacy in just a few clicks.

Helpdesk

This site includes structured support channels such as help center, ticketing, chat, or service contact pages.

Registration Form

This website implements data collection forms that may request personal information including names, email addresses, phone numbers, or other sensitive details. You should verify its legitimacy and review privacy policies before submitting personal data.

Cookie Consent

postmark.com implements a cookie-consent interface for managing tracking and data-collection preferences.

Link Shortener

This website employs URL shortening services to create abbreviated web addresses. While commonly used for convenience and marketing purposes, shortened URLs can obscure destination websites and may be exploited to conceal malicious or deceptive content.

Google Tag Manager

This website uses Google Tag Manager to add and update tracking tags on its website.

X/Twitter Ads

AI-generated Text

postmark.com contains text patterns consistent with machine-generated or AI-assisted content production.

Redirects to Another Domain

This site redirects visitors to a different domain. This can be legitimate in some migrations or forwarding setups, but it reduces transparency for users evaluating the original address.

Long Term Domain

This site is registered for an extended period, which is generally a positive continuity signal.

Established Domain

postmark.com has maintained active domain presence over time, indicating operational continuity.

Fake Social Media Links - Risk

Analysis reveals that this site displays social media icons or links that do not connect to legitimate social media profiles. This deceptive practice is commonly employed to create false legitimacy and represents a significant indicator of fraudulent intent requiring immediate caution.

Corporate Registration

This domain is registered through a corporate-focused registrar, MarkMonitor, Inc., commonly used by established organizations for managed domain protection and portfolio control.

Domain Information

Created April 9, 1996 at 4:00 AM Updated: April 7, 2025 at 5:22 PM · Expires: April 10, 2029 at 4:00 AM

Domain Age 30.2 years

Registrant US (United States)

Registrar MarkMonitor, Inc. IANA ID: 292

Abuse Email [email protected]

Domain Status Client Delete Prohibited ( · Client Delete Prohibited · Client Transfer Prohibited ( +3 more · DNSSEC: UNSIGNED

Top Level Domain .com Generic TLD

Technical Details

HTTP status 301

IP Address 3.131.150.69

Hostname ec2-3-131-150-69.us-east-2.compute.amazonaws.com

Hosting Provider Amazon.com, Inc. Columbus, Ohio, US

Network AS16509 - Amazon.com, Inc. Hosting

SSL Certificate WE1 TLS 1.3 · Valid for: 3 months · from April 27, 2026 at 10:13 AM · to July 26, 2026 at 11:13 AM

Name Servers ns1.dnsimple.com
ns2.dnsimple-edge.net
ns3.dnsimple.com
ns4.dnsimple-edge.org

Content Analysis

Website title Postmark: Fast, Reliable Email Delivery Service | SMTP | API

Website description Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.

Primary Language

Mentioned hosts (29)

www.clarity.ms c.bing.com static.ads-twitter.com twitter.com pagead2.googlesyndication.com dmarcdigests.com scripts.clarity.ms www.googletagmanager.com analytics.twitter.com bzrcdn.openai.com static.hotjar.com c.clarity.ms postmark.com www.activecampaign.com t.co and 14 more

How to block Postmark.com?

Our Anti-Malware can automatically block access to postmark.com if it is flagged as malicious.

Install and run the protection.
The program will block flagged domains and remove related threats.

Exclusion

If you believe postmark.com is safe, you can add it to the exclusion list:

Open Gridinsoft Anti-Malware → Tools → Ignore List.
Go to the Internet tab and add postmark.com.

See detailed instructions for more options.

Are You the Owner?

If you own Postmark.com and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.

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Your score for postmark.com

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