Postbox Consultancy Services is an Email Deliverability Company and Your Emailing Partner.
Bhopal, India
Joined September 2017
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PostBox Consultancy Services retweeted
“I am announcing the formation of the Super Intelligence Force (SIF). The Super Intelligence Force is tasked with coordinating the effort of the Federal Government to ensure that America continues to lead the World in Super Intelligence, which many say is bigger than the Industrial Revolution, and the Internet, and will protect the interests, and improve the lives, of all Americans.” - President DONALD J. TRUMP 🇺🇸
Where did your email actually land - inbox or spam?
APRF is a new IETF draft: publish one DNS record, get daily placement + engagement reports by email. Like Google Postmaster Tools, but from any mailbox provider.
Plain-English guide + 3 free tools:
postboxservices.com/blogs/po…
TLS certificate lifetimes are already down to 200 days. 100 in Mar 2027. 47 in Mar 2029.
Everyone read this as a web story. It's also an email story.
MX, MTA-STS, TLS-RPT, DANE and BIMI all sit on that clock.
And unlike the web, mail fails quietly.
postboxservices.com/blogs/po…
We broke the whole thing down in plain English - with a safe, hands-on lab where you watch a replay pass using your own domain 👇
postboxservices.com/blogs/po…
The fix:
Long term - DKIM2 (an IETF draft) binds each signature to its intended recipients.
Today - set a short DKIM signature expiry, so a captured message can't be replayed forever.
And this isn't theoretical.
In 2025, DKIM replay spoofed PayPal, Apple, and even Google's own [email protected].
Real senders. Real signatures. Fake intent.
"Just enforce DMARC" won't save you.
A replay carries a real, aligned DKIM signature, so DMARC passes via DKIM.
p=reject only blocks what fails. A replay doesn't fail.
The uncomfortable truth:
A DKIM "pass" only proves a message was signed by a domain.
Not that the domain sent THIS copy, to you.
DKIM signs the message - not the delivery.
The trick:
They type the fake charge + phone number into a field PayPal lets you fill in yourself.
PayPal then generates and DKIM-signs a 100% genuine email to an inbox they control.
They forward that signed message to thousands. The signature stays valid.
A "PayPal invoice" hits your inbox.
DKIM: ✅ valid
DMARC: ✅ passed
It genuinely came from PayPal's servers.
And it's a scam. The attacker never touched PayPal.
Here's how that's possible 🧵
All 6 tools. Free forever.
Built by @PostBoxServices - 10 years, 500+ clients, and tired of tools that get the easy stuff wrong.
Full list: postboxservices.com/tools
#EmailDeliverability #DMARC #EmailSecurity #EmailMarketing #SPF #DKIM #ColdEmail #EmailOps
6/ Mail Tester
Send a test email before your campaign goes live. Get a spam score, authentication verdict, and content flags back in seconds.
→ mailtester.postboxservices.c…
5/ Spoofing and BEC Check
Can someone put your exact domain in a phishing From line right now?
Grades your exposure: DMARC enforcement, SPF strength, live lookalike domain scan. Reads public DNS only, nothing sent to your domain.
→ security.postboxservices.com
4/ TLS-RPT Monitor
Google sends you JSON reports every day about TLS encryption failures on mail delivered to your domain. Nobody reads them.
We do. Weekly digest, plain English, what failed and why.
→ tlsrpt.postboxservices.com
3/ DMARC Monitor
Add one reporting address to your DMARC record. Every Monday you get a plain-English digest:
Who sent as your domain
SPF and DKIM pass rates by provider
Your current policy verdict and next step
→ dmarc.postboxservices.com
2/ Blacklist Checker
Checks 25+ DNSBLs including Spamhaus, Barracuda, SORBS and SpamCop simultaneously.
→ bl.postboxservices.com
1/ Domain Health Check
SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT, DNSSEC - all in one lookup. Grades your domain A to F with plain-English verdicts and the exact DNS fix to copy-paste.
→ mx.postboxservices.com
We just shipped 6 free email tools. No login. No limits. No catch.
Everything we wished existed when we started in 2019 - built and free for anyone who needs it.
Thread 🧵
PostBox Consultancy Services retweeted
Developing self-discipline in the contemporary world can be an overwhelming task. Self-discipline can be built from a routine practice of journaling, mindfulness, exercise, or finding a mentor.
mystical-universe.com/10-way…
#selfdiscipline #mindfulness #meditation #journaling
