Admin Hint

Email Marketing Mistakes: A Practical Pre-Send Checklist

A campaign can look polished and still send the wrong offer to the wrong people. Before changing your template, check the audience, the action you want readers to take, and what happens after they click.

Adminhint October 15, 2026

Linux

Linux File Manager Problems? Fix Missing Templates, Hidden Files and Permissions

Fix common GNOME Files problems: a missing New Document option, hidden configuration files, and folders you cannot edit. Start with narrow, safe checks.

Adminhint October 13, 2026

Linux

Old Laptop Still Slow on Linux? Choose a Lighter Setup Before Reinstalling

Choose a Linux setup for an older laptop by checking memory, storage, architecture, and live-USB compatibility before replacing your current system.

Adminhint October 13, 2026

Linux

Two People Changed the Same Config File? Merge Safely with diff3

Compare local, original, and incoming configuration files with diff3. Learn the correct file order, review conflicts, and validate before deployment.

Adminhint October 13, 2026

Linux

Linux PC Running Slowly? Find the Bottleneck with btop

Use btop to investigate a slow Linux PC, separate CPU and memory pressure from disk or network activity, and choose the next diagnostic step.

Adminhint October 13, 2026

Linux

Bash History Missing After Closing a Terminal? Fix the Save Settings

Fix missing Bash history by checking the active shell, history limits, file permissions, and append behavior. Includes a two-terminal verification test.

Adminhint October 13, 2026

Email Marketing

SendGrid vs Brevo: Pros, Cons, Pricing & Who Should Choose Each

Compare SendGrid and Brevo for transactional email, newsletters, automation, and pricing. Find the better fit for your application or marketing team.

Adminhint October 13, 2026

Instantly vs Smartlead comparison banner

Email Marketing

Instantly vs Smartlead: Pros, Cons, Pricing & Who Should Choose Each

Compare Instantly and Smartlead on pricing, reply handling, agency workflows, and integrations. Find the better fit for your outreach setup.

Adminhint October 13, 2026

KumoMTA vs PowerMTA — Best MTA for Email Marketers

Email Marketing Linux

KumoMTA vs PowerMTA: Detailed Comparison for Email Marketers

Choosing the right Mail Transfer Agent (MTA) is a strategic decision for any email program. For high-volume senders and agencies, two names often come up: the open-source KumoMTA and the…

Adminhint November 29, 2025

Email Marketing Linux

What is KumoMTA? Complete Guide to the High-Performance Mail Transfer Agent

Email delivery performance is a crucial factor for businesses, developers, and marketers. Whether you’re sending transactional emails, newsletters, or bulk marketing campaigns, you need a fast, reliable, scalable Mail Transfer…

Adminhint November 28, 2025