Deliverability
What Is BIMI and Do You Actually Need It?
BIMI puts your logo in the inbox, but only after DMARC enforcement and usually a paid verified certificate. Here is who needs it and who can skip it.
5 min read
July 16, 2026Blog
Email marketing insights
Best practices, tutorials, tips and tricks to maximize your email marketing results.
97 articles
Page 1 of 11
Comparisons
SMTP Relay Pricing Comparison 2026 - Cost per 1K/10K/100K/1M Emails
One table, eight providers, four volume tiers. What SMTP relay actually costs in 2026 at 1K, 10K, 100K, and 1M emails per month, and where flat-fee servers take over.
5 min read
July 16, 2026
Comparisons
Mautic SMTP Configuration - Send Campaigns Through Your Own Server
Mautic's marketing automation is free; the sending is yours to provide. The SMTP transport, queue, and bounce configuration that makes it run on your own server.
4 min read
July 16, 2026
Infrastructure
How to Send 10,000 Emails a Day, Infrastructure, Warm-Up, and Costs
Sending 10,000 emails a day reliably takes one or two warmed dedicated IPs, proper DNS authentication, and a realistic ramp-up schedule. Here is the exact setup and what it costs.
5 min read
July 15, 2026
Comparisons
Brevo (Sendinblue) Alternatives Compared
Brevo is solid value, but its per-send tiers and add-on IPs limit high-volume senders. Here are the strongest alternatives, with a comparison table.
8 min read
July 15, 2026
Comparisons
Twilio SendGrid vs Dedicated SMTP Server at Scale
SendGrid is fast to start but gets expensive and inflexible at volume. Here is how it compares to a dedicated SMTP server on cost, IPs, and control.
9 min read
July 14, 2026
Troubleshooting
550 5.1.1 "User Unknown" Bounce - What It Means and What to Do
User unknown is the most common hard bounce in email. The message is dead, but what the bounce says about your list, and what you do next, decides your sender reputation.
3 min read
July 14, 2026
Deliverability
Inbox Placement Testing with Seed Lists - How to Know Where Your Email Lands
Delivery rate tells you mail was accepted, not where it landed. Seed-list testing shows actual inbox vs spam placement per provider, with results in minutes instead of Postmaster's 3-day lag.
3 min read
July 13, 2026
Infrastructure
Dedicated IP vs Shared IP for Email - When Each Makes Sense
Below ~50K emails/month a good shared pool usually wins; above it, a dedicated IP gives you a reputation nobody else can wreck. The real decision criteria, with numbers.
4 min read
July 13, 2026