Marcus Biel

Maildroppa is now officially available in the WordPress Plugin Directory 🎉 If you use WordPress, you can now add signup forms, manage subscribers & tags, and run RSS newsletters right from your WordPress dashboard. And yes — the plugin is free.

Building Maildroppa with GPT Codex + Claude Code. Claude is fast; GPT Pro thinks deep; they review each other. In weeks: 35-language React app, revisions, health scoring, Rspamd spam check, backend refactor for A/B testing. Heaven + hell: speed is addictive, pressure is brutal.

Is it just my bubble or is the entire social media now exclusively talking about AI and the next secret best ever prompt 🤪

🚀 Maildroppa update is live After 4 months of modernization focused on stability & clarity, we just shipped: 🗣️ UI in 35 languages 🧩 Central Footer Builder 🌍 Subscriber-facing text language 🔁 Undo / redo in automations Built on a fully modernized codebase. Feedback welcome 💬

AI won’t kill SaaS—it’ll kill trivial “A→B” utilities. Real software is years of decisions, edge cases, and domain knowledge. AI can write code, but you must specify. Without deep understanding, prompts produce polished junk.

AI won’t kill SaaS—it’ll kill trivial “A→B” utilities. Real software is years of decisions, edge cases, and domain knowledge. AI can write code, but you must specify. Without deep understanding, prompts produce polished junk.

🚀 Maildroppa update is live After 4 months of modernization focused on stability & clarity, we just shipped: 🗣️ UI in 35 languages 🧩 Central Footer Builder 🌍 Subscriber-facing text language 🔁 Undo / redo in automations Built on a fully modernized codebase. Feedback welcome 💬

Just learned about git bisect from Claude. Wow :)

Toxic customers ... 🤬

🎉 Just hit 1337 followers — call me 1337! For the non-nerds: 💻 1 = L 💻 3 = E 💻 3 = E 💻 7 = T That’s right… LEET, short for ELITE 😎

During a React Flow rebuild, edges went wild. Screenshots + AI (ChatGPT 5 Pro, Claude, Juni Ultimate) didn’t help. I wrote: "node top-left, another to the right; put a + at their midpoint." Instant fix. Lesson: images can mislead—precise text wins.

Not sure how I did it.. but.. wohoooo! :)

really miss GPT 4.5 for writing and o3 for coding. It's weird how Sam Altmann made this big statements of how super smart GPT 5 was -when it's not. Super slow is all that it is. Sonet 4.5 got quite nice though! What are your experiences?

Prospect: “Mailchimp is too pricey. Do you have nonprofit pricing or pay‑as‑you‑go?” Me: “You can try all features for free.” Prospect: “Great—can you do a 1:1 concierge demo instead?”

I finally get to share: Maildroppa’s #zapier integration is live :) 🚀 We’re even sitting next to Figma in the new apps feed 🙌 Create/update subscribers, manage tags & segments, run searches & counts—all for free. zapier.com/apps/maildro...

🚀 Early access: Maildroppa × Zapier Automate subscriber workflows (create/update, tags, segments) and trigger your campaigns via tags. Want in? DM your Zapier email with “ZAPIER”. Beta perks: priority support + setup templates. #Zapier #EmailMarketing

Do you know someone who knows about Zapier CLI? I am failing to create a nested zapier action - to create a list of list of elements, as seen in the screenshot.

2-week verdict on Claude Max: gorgeous code 😍, zero context 🤪. It invents APIs and gushes that you’re brilliant even when you’re wrong. GPT-O3’s code may be less pretty, but it has much more context and just works—and it’s far less of a yes-bot. Back to GPT 🤠

Life is hard sometimes

Just received a cold email so bad it made me laugh and cry 😂😭

Running Google Ads with tracking? It takes FIVE separate Google accounts, all wired together. Absolute nightmare and an insult to marketers. Full rant → www.linkedin.com/posts/marcus...

🚀 I’m available for a new freelance contract! Expert in Startups, Email Marketing, Java, Spring Boot, Quarkus, Micronaut, Cloud, DevOps & AI. Happy to help you build clean, scalable systems. DM me or forward my details. #Java #freelance #DevOps #Cloud #AI

Pope has been elected. Rumors say it will be a man 🙈

Goodbye, my love, we had so many good years. Missing you.

Wohoooo :)

I get many calls on my website to "Y29uZmlybS" which is base64 encoded for "confirm". Does anyone else see such behavior? Why? Who? What to do against it? It screws my Plausible stats :(

Just published what might be my best article on email marketing ever! Wrote it 3 times with some GPT help—but the core idea and insights came directly from me. GPT just turned weeks into days. Check it out 👇 maildroppa.com/academy/emai...

Just published what might be my best article on email marketing ever! Wrote it 3 times with some GPT help—but the core idea and insights came directly from me. GPT just turned weeks into days. Check it out 👇 maildroppa.com/academy/emai...

Am I weird or is it her? ;)

Just realized that our babysiter was born 7 years after I got my a-levels. Does this mean I am old? 😱

At the age of 45 I finally realized why the card game Uno is called Uno 🙈

AWS is a masterclass in overcomplication. To download my $1.23 invoice, I go through MFA hell—broken login, email code, phone call, confirm a number—15 minutes wasted every time. And they won’t even email me the invoice “for security reasons.” 🙃

Took me the whole day until now 00:38 to illustrate my email marketing article with great AI photos - let me know if this was justified. maildroppa.com/academy/targ...

Took me the whole day until now 00:38 to illustrate my email marketing article with great AI photos - let me know if this was justified. maildroppa.com/academy/targ...

Started playing around with the new GPT 4.0 image creation. It's mind blowing! See below my old DALL-E drawing of 2 apes (Mailchimp vs Maildroppa) and now the photo realistic new version of it 😎 Article is here: maildroppa.com/academy/emai...

It's so over. Last night OpenAi added the o1-pro-barista-high extension. You ask for coffee.... And just like that, you get the best coffee ever. $200 subscription is soo worth it!

A short morning walk in the forest next to my house. Spring is coming 🤗

Today at noon, I made a chicken noodle casserole.

I discovered a fast image research technique using GPT-4.5. It suggests search terms from my article, and I screenshot stock photo results. GPT reviews the grid, pinpointing the best shot by row and column—or suggesting improved terms. This speeds up my process significantly.

Exciting update: Maildroppa now has a public API! Manage subscribers, fields, tags, segments, and more. All you need is a free account, then grab your API key from your user profile and start exploring. Let’s see what you build! api.maildroppa.com

Still working on my heart latte art

Mission accomplished 😊

I started using the GPT api to dynamically create a glossary of email-marketing related terms. I also would like to auto generate an illustration in 16x9 format that illustrates each term. What's the best api for that? DallE usually produces bad results IMHO.

Created my first demo video with Sora. A short demo video for Maildroppa. The result is just mind breaking ;)

I believe the real reason why openapi is striving for AGI is that it would finally enable them to come up with better names for their products than o3-mini-high.

Still working on my heart latte art. That's the first thing that is getting closer to a heart ❤️🎉

The numbers are still a bit early to say, but so far they tell me that our new Maildroppa sales page (done with GPT Pro) has 40% higher conversion rate then the old one (done for 3K by a copy writer). 🚀