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Do Paid Domain-Based Email Services Require SPF, DKIM & DMARC? A Technical Knowledge Base Guide for Google Workspace, Microsoft 365, Yahoo Business Mail & Rediffmail Pro

Modern email delivery is governed by strict anti-spam and anti-phishing standards. Merely purchasing a paid, domain-based email service does not guarantee inbox delivery.Whether yo…

DMARC, DKIM, and SPF for Email Authentication

Introduction Email authentication is critical for protecting against spam, phishing, and other malicious activities. DMARC (Domain-based Message Authentication, Reporting, and Conf…

Step-by-step: fix “email sent as another user” using Google Workspace SMTP Relay + PostMaster

A) Google Workspace (Admin Console) — set up SMTP Relay Open: Admin Console → Apps → Google Workspace → Gmail → Routing → SMTP relay service → Add Setting. Description: Pos…

How to Fix DKIM TXT Record Truncation Issue in DNS: Complete Step-by-Step Guide for Google Workspace

What is DKIM?DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to your outgoing emails. It prevents spoofing and ensures that receiv…

Correct DNS Architecture When Using Cloudflare with Hostinger Hosting and Email Services (Hostinger / Google Workspace / Zoho / None)

This Knowledge Base article explains the correct DNS architecture, configuration, and operational best practices when: A domain is delegated to Cloudflare for DNS and security …

Why Business Emails Go to Spam Even When SPF, DKIM, and DMARC Are Correct

Many organizations assume that once SPF, DKIM, and DMARC are configured correctly, all business emails will reliably reach the inbox. In reality, email authentication is only the f…

What Is a DMARC Aggregate Report and Why You Receive Emails from noreply@dmarc.yahoo.com

If you manage a business domain or corporate email system, you may have received emails from addresses like noreply@dmarc.yahoo.com with attached files ending in .xml.gz. At first …

Correct Domain Address Formats in Google Workspace Gmail Compliance & Email Restriction Policies

In Google Workspace (Gmail) Admin settings, address lists are commonly used to control allowlisting, blocklisting, and authentication requirements for inbound and outbound email.A …

DNS TXT Record Save Failure Due to Mismatched TTL Values

DNS management interfaces may reject changes to TXT records with an error stating that records of the same name and type must have the same TTL value. This issue commonly surfaces …

Google Workspace SMTP Relay (IP-Based) — Architecture, Configuration, EHLO / Envelope-From Errors & Fixes

This Knowledge Base article provides a technical deep dive into Google Workspace Gmail SMTP Relay (IP-based), covering:SMTP Relay architecture and behaviorCorrect configuration for…

Google Workspace vs Microsoft 365 vs Rediffmail Pro – Detailed Technical Comparison for Business Email & Productivity

Selecting the right business email and productivity platform is a strategic IT decision that affects communication reliability, data security, user productivity, and long-term scal…

How to Set Up MX Records for Google Workspace (2026)

Email delivery for any domain depends on Mail Exchange (MX) records, a critical DNS configuration that tells the global internet where to deliver incoming email. When you deploy Go…

How to Configure Google Workspace MX Records for Email Delivery (Technical Guide)

This Knowledge Base article provides a technical, implementation-focused guide for configuring MX (Mail Exchange) records for Google Workspace.It is written for IT professionals, s…

How to Use Google Admin Toolbox Dig Tool to Verify MX Records and other Records like A Record, NS Record, TXT Record etc.

When configuring Google Workspace email or troubleshooting delivery issues, verifying that your MX records are correctly set up in DNS is essential. Google provides an official and…

How to Configure Google Workspace SMTP in Postbox: Complete Setup Guide by Bison Infosolutions

? IntroductionEmail remains the backbone of professional communication. Whether you're managing multiple business inboxes or ensuring reliable message delivery, having a secure and…

MX Record TTL Mismatch Between Cloudflare and Hostinger: Technical Impact, Behavior, and Resolution

This article explains why Cloudflare DNS does not provide a 14400-second (4-hour) TTL option while Hostinger recommends TTL 14400 for MX records, and whether this mismatch causes e…

Zoho Business Software Suite – CRM, ERP & Collaboration Platforms (Knowledge Base) Overview of Zoho Products and Services

Zoho provides a comprehensive suite of cloud-native business applications designed for small, mid-sized, and growing enterprises. Its platforms cover customer management, accountin…

Understanding Name Servers and DNS Records: A Guide to Website Hosting and Domain Management

When setting up a website, understanding how name servers and DNS (Domain Name System) records work is essential for ensuring your site is accessible online. This article will expl…

CaptainBiz GST Accounting & Compliance Software – Technical Knowledge Base Guide

CaptainBiz is a GST-focused accounting, invoicing, and compliance software developed by IRIS Business Services Limited. It is designed primarily for small and medium businesses (SM…

Cygnet FACE – GST Compliance, Reconciliation & Automation Platform | Technical Knowledge Base

Cygnet FACE is an enterprise-grade GST compliance and reconciliation platform developed by Cygnet Infotech Private Limited. FACE (Fully Automated Compliance Engine) is designed to …

Detecting and Preventing Hyper-V, Virtual NIC, and RDP Takeover Persistence on Windows Servers – A Complete Incident Response & Hardening Guide

Modern Windows Server attacks rarely stop at initial access. Once attackers obtain administrator or SYSTEM-level execution, they often attempt to establish persistence by enabling …

uBooks Accounting & GST Compliance Software – Technical Knowledge Base Guide

uBooks is an Indian cloud-enabled accounting and GST compliance software developed by Adaequare Info Private Limited. It is designed to help small businesses, professionals, and en…

AppSumo Knowledge Base: Platform Overview, How It Works, Use Cases, and Best Practices

AppSumo is a digital marketplace that connects software product creators with early adopters, startups, and small businesses by offering lifetime deals (LTDs) and heavily discounte…

Internet Bandwidth Capacity Planning: Evaluating 39,600 GB Monthly Data for a 40-System Office

This article explains how to analyze, calculate, and validate whether 39,600 GB (≈39.6 TB) of monthly internet data is sufficient for an office with 40 systems. It focuses on prac…

Best Apps to Test Your Wi-Fi Security – A Practical IT Security Assessment Guide

Wi-Fi networks are one of the most common entry points for unauthorized access, data theft, and lateral movement inside a network. Weak encryption, poor passwords, outdated firmwar…

Best Apps for Testing Internet Speed – Technical Guide for IT & Network Teams

Internet speed testing is a fundamental task in IT operations, network troubleshooting, ISP validation, and end-user support. Accurate speed tests help identify bandwidth bottlenec…

How to Set Up Hostinger Email in Outlook for Windows (Hostinger Webmail)

Setting up your Hostinger email on Outlook for Windows ensures seamless and secure access to your messages across all devices. This guide walks you through both the automatic and m…

Tally Education – Structured Accounting & Business Software Training Ecosystem

Tally Education is a structured education and certification ecosystem designed to provide formal training in accounting, finance, taxation, and business software skills using Tally…

SQL Server Backup and Restore Using NoSky Cloud Backup Solution – Technical Knowledge Base

Databases are among the most critical assets in any IT environment. Microsoft SQL Server hosts transactional and operational data that must be protected against accidental deletion…

Windows Server Manager Shows “Core Scanning Server” Stopped After Quick Heal Update – Explanation & Resolution

System administrators running Windows Server with enterprise antivirus and EDR solutions may occasionally observe a temporary service alert in Server Manager, indicating that the “…

Implementing SEO-Safe Hidden Metadata in PHP Websites Using Schema Markup (JSON-LD)

Website owners often want to add keywords or tags that are readable by search engines but not visible to users. Historically, this was done using hidden text or <meta keywords&g…

Cracked Software Explained: Meaning, Risks, Legality, Pros & Cons

Cracked software refers to computer programs or applications that have been illegally modified to bypass licensing, activation, or payment mechanisms enforced by the original softw…

PHP-Based Sitemap.xml Implementation for SEO-Optimized Websites

A sitemap is a critical component of modern website SEO. It provides search engines with a structured list of URLs that should be crawled and indexed. While static sitemap.xml file…

Digital Signature Certificates (DSC) in India: Class-2, Class-3, Types, Legal Validity, Manufacturers, and Practical Usage

Digital Signature Certificates (DSC) are a foundational element of secure electronic transactions in India. They are legally recognized tools used to authenticate identity, ensure …

Microsoft Excel Features and Shortcut Commands for Everyday Productivity

Microsoft Excel is a powerful spreadsheet application used daily for data entry, calculations, reporting, analysis, and decision-making. While many users rely on mouse-driven actio…

Blocking Emails Containing PAN or Aadhaar Numbers in Google Workspace (Inbound & Outbound)

Indian organizations handling financial, identity, HR, or compliance-sensitive data must prevent accidental or unauthorized sharing of PAN (Permanent Account Number) and Aadhaar Nu…

Robotic Process Automation (RPA) & Hyperautomation: A Practical Technical Guide

Organizations increasingly rely on automation to improve efficiency, reduce errors, and scale operations without proportional increases in cost. Robotic Process Automation (RPA) an…

Google AdSense ads.txt Configuration for Subdomains on Same Hosting

This knowledge base article explains how ads.txt works with subdomains in Google AdSense, specifically when the subdomain is hosted on the same server and mapped to a folder (custo…

Windows System Freezes with Sudden Fan Spike on NVMe SSD Systems (CPU Thermal Throttling Diagnosis & Fix)

This Knowledge Base article addresses a common but often misdiagnosed issue on modern Windows systems with NVMe SSDs, where the system temporarily hangs or becomes unresponsive, th…

Tally Invoice Logo Configuration – Recommended Size, Format, and Troubleshooting Guide

This Knowledge Base (KB) article provides technical, practical guidance for configuring a company logo on Tally invoices. It is intended for IT professionals, system administrator…

Google Chrome Not Showing Latest Website Content – Cache, DNS, and Browser Behavior Explained

This Knowledge Base article explains why Google Chrome displays outdated or old versions of a website instead of the latest deployed content. It covers browser caching, DNS resolu…

TallyCapital – Digital Credit Enablement Platform for Businesses Using Tally

TallyCapital is a digital credit enablement platform that helps eligible businesses discover, apply for, and access working capital and business loans based on their accounting dat…

TallyPrime Developer vs Normal TallyPrime – Features, Use Cases & Technical Differences

TallyPrime is widely used for accounting, compliance, and business management. Alongside the standard (normal) TallyPrime edition used for day-to-day operations, there is a special…

TallyPrime Developer – Comprehensive Development Suite for TDL Customization

TallyPrime Developer is a comprehensive development suite designed to enable TDL (Tally Definition Language) programmers to develop, customize, test, and deploy solutions for Tally…

RSI, MACD & Volume Explained with Suzlon Energy – A Practical Trading Guide for Indian Stocks

Technical indicators are tools that interpret price, momentum, and participation in the stock market. Among them, RSI (Relative Strength Index), MACD (Moving Average Convergence Di…

Why Google Shows a One-Time Security Code During Account Recovery

During Google Account recovery or sign-in verification, you may see a one-time 6-digit security code with a strict time limit (usually 5 minutes). Many users encounter this for the…

TSplus Remote Support: Secure Browser-Based Remote Assistance for IT Support Teams

TSplus Remote Support is a lightweight, browser-based remote assistance solution designed for IT professionals, system administrators, MSPs, and support teams. It enables secure on…

Atovio Pebble Wearable Air Purifier — Technical Knowledge Base Article

Air quality deterioration is a major health concern in urban environments. Traditional room purifiers provide localized indoor air cleaning but are ineffective while commuting or m…

Does Apple OS (macOS) Require Antivirus Software? – Technical Analysis, Vendors, and Best Practices

Apple’s operating system, macOS, is widely perceived as secure by design. This perception is largely accurate due to Apple’s tightly controlled ecosystem, strong hardware–software …

Saral Accounts – Accounting & GST Software | Technical Knowledge Base Guide

Saral Accounts is a desktop-based accounting and GST-compliant business software developed by Relyon Softech Limited. It is designed for small and medium businesses (SMBs) to manag…