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  • Authors
  • Ahona Rudra
  • About
  • Latest Posts
Ahona Rudra
Domain & Email Security Expert at PowerDMARC
Ahona is the Marketing Manager at PowerDMARC, with 5+ years of experience in writing about cybersecurity topics, specializing in domain and email security. Ahona holds a post-graduation degree in Journalism and Communications, solidifying her career in the security sector since 2019.
Latest posts by Ahona Rudra (see all)
  • Microsoft Sender Requirements Enforced— How to Avoid 550 5.7.15 Rejections - April 30, 2025
  • How to Prevent Spyware? - April 25, 2025
  • How to Set Up SPF, DKIM, and DMARC for Customer.io - April 22, 2025
man in the middle sniffer

What is TLS Downgrade Attack? How MTA-STS Comes to the Rescue?

Blog
TLS downgrade attacks can enable attackers to convert a secure connection into an insecure one and access and tamper with your messages. Learn about how MTA-STS mitigates TLS downgrade attacks and makes mail server connection secure.
December 10, 2020
powerbimi blog

Why Do You Need BIMI Implementation for Enhancing Brand Recall?

Blog
In order to provide their emails with an additional layer of protection, businesses need to implement a new standard like Brand Indicators for Message Identification (BIMI), as it promises to take consumer confidence to the next level. 
December 1, 2020
black friday blog

Black Friday to Incur Surge in Email Spoofing Attacks- Are You Prepared?

Blog
With Black Friday creeping up on us, online retail stores and e-commerce platforms need to upgrade their security suit with DMARC in order to protect against email spoofing attacks.
November 24, 2020
100 dmarc enforcement blog

So You Just Got to 100% DMARC Enforcement. What Now?

Blog
Even after enforcing DMARC policy on your domain, you still need to continue monitoring your domain for total email security.
October 27, 2020
why need dmarc blog

Why do you need DKIM?

Blog
Why its important to implement DKIM. Read now the reasons why to implement and how to secure your email.
October 26, 2020
forensic report ruf blog

Are DMARC Failure Forensic Reports (RUF) Dead? Are you missing this angle of visibility?

Blog
DMARC Forensic Reports (RUF) give much more detailed information about emails from your domain that failed DMARC authentication.
October 20, 2020
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    Recipient Address Rejected: Access Denied – Causes & Fixes (SMTP 550 5.7.1)May 9, 2025 - 5:53 am
  • All My Emails Are Going to Spam — Here’s What You Can Do About ItMay 1, 2025 - 1:07 pm
  • What Might Be a Phishing Message? 10 Red Flags You Shouldn’t IgnoreMay 1, 2025 - 1:03 pm
  • Microsoft Sender Requirements Enforced — How to Avoid 550 5.7.15 RejectionsApril 30, 2025 - 7:20 am

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