Why plain text emails are no longer enough

Your boring, plain-text emails are why your prospects are ghosting you. I watched a client send 500 cold emails last month. Response rate: 0.8%.Then I saw their inbox. Gmail, Outlook, Apple Mail - every platform displaying emails like this: "Hi [First Name], I noticed your company..." Plain text. No personality. No visual hierarchy. Here's what your prospects actually see: → Wall of text that requires effort to parse → Zero visual elements to guide their attention → Generic formatting that screams "mass email" → No clear call-to-action that stands out Meanwhile, the emails that DO get responses follow basic UX principles: Visual hierarchy guides the eye. White space creates breathing room. Bold text highlights key benefits. Clear CTAs tell them exactly what to do next. But here's the problem most face: Adding visual elements historically hurt deliverability. You had to choose between engaging design and inbox placement. Not anymore. Tools like Maildoso now let you include rich formatting, images, and links without sacrificing deliverability. Their infrastructure handles the technical complexity while you focus on creating emails people actually want to read. Your prospects' inboxes are evolving from text-only wastelands to visually engaging experiences. The senders adapting to this reality are getting responses. Your email isn't competing against other emails anymore. It's competing against every other piece of content fighting for attention. Make it worth their time to read. What's the most visually engaging cold email you've received recently? What made it stand out?

Your social feeds used to be chronological. Then algorithms decided what you'd see — and now the same thing is happening to your email inbox. THE SOCIAL TRANSFORMATION Facebook introduced algorithmic feeds in 2011. Instagram followed in 2016. Twitter in 2023. The result transformed social: ✔️ Brand organic reach on Facebook collapsed from 16% in 2012 to under 2% today (HubSpot). LinkedIn's 2023 updates cut organic reach by 50% (Algorithm InSights). ✔️ Corporate posts became invisible while human accounts got 8x more engagement (DSMN8). Founder-led content and influencer marketing became core tactics. ✔️ Pay-to-play became the only way for brands to be seen. Facebook launched Boosted Posts in 2012, and now 99% of their revenue comes from advertising. ✔ ️ Optimizing for the algorithm led to some bad consequences. Facebook's own internal research admitted their system "makes it much easier to inspire someone to hate than to compassion." Oxford named "rage bait" its 2025 Word of the Year. THE ALGORITHM COMES FOR EMAIL Google just launched AI Inbox. Instead of a chronological list of messages, Gmail will serve up "suggested to-dos" and topic summaries, turning the inbox into an AI-curated task manager. The analogy with social helps us predict what will happen to email. HUMANS WILL BEAT BRANDS (AGAIN) Plain text from real people already outperforms HTML marketing by 23% on opens and 42% on clicks (Litmus). With AI inboxes, this difference will widen as the agents prioritize human emails sent from real inboxes, not IP addresses. Will email follow social into pay-to-play? Gmail already has Sponsored Promotions in the Promotions tab, so I wouldn't be surprised if brands will pay to “boost” their emails to help their emails get better visibility. And what about discovery? Could AI start surfacing emails from senders you don’t even subscribe to, the way social feeds surface relevant content from people you don’t follow? ENGAGEMENT BAIT, EMAIL-STYLE? Like social algorithms, AI email agents use engagement signals to determine what’s valuable: opens, clicks, replies, time spent reading, scrolling behavior, etc. As a result, some marketers will attempt to bait engagement to increase visibility of their emails, using tactics like deceptive subject lines, curiosity gaps, fake urgency, and clickbait. This will unfortunately make email worse, not better, at least until the algorithms catch up. In the meantime, the best marketers will focus on what they always have: providing relevance and value, personalized to each recipient. I recently predicted on @chiefmartec that email would shift from owned media to earned media — inbox attention granted based on relevance, value, and trust, not just sending permissions. The AI inboxes will make that change faster than most marketers are prepared for. Social media taught the lesson. Email is next.  How will you adapt your email strategy?

I just sent 300 cold emails with Loom videos and Calendly links. Zero spam folder issues. Last month, a client asked me to help fix their cold email campaigns that were getting terrible response rates. The problem wasn't their targeting or copy. It was their fear of including anything that looked "salesy." Plain text emails. No booking links. No visual elements. No personality. Basically, emails that looked like they were written in 2003. Here's what I realized: We weren't protecting deliverability. We were protecting ourselves from actually connecting with prospects. 🧉Marc Stu and I decided to test something that goes against every "cold email guru" rule: What if we made our outreach actually helpful instead of just "safe"? The breakthrough came when we started using Maildoso's new Global Custom Domain Tracking feature. It automatically converts any "risky" link into a deliverability-safe version behind the scenes. Suddenly we could include: → Personalized Loom videos showing their specific challenges → Direct Calendly booking links (no more "reply to schedule") → Case studies and testimonials that build instant credibility → Interactive demos that show real value The transformation was immediate: more responses, more meetings booked, and deliverability actually improved. The insight that changes everything: Prospects don't want boring emails. They want helpful ones that make taking the next step effortless. Your competition is still sending text-only emails because they think it's "safer." Meanwhile, you could be creating experiences that prospects actually want to engage with. The feature is completely free and takes 30 seconds to enable in your Maildoso settings. Pro tip: Start with personalized screen recordings. Show prospects exactly what you'd improve about their process. Personal + visual + actionable = response magnet. Cold email just became 10x more engaging without sacrificing inbox placement. What's the first visual element you'd add to your cold outreach?

We saw this coming 12+ months ago...HTML-heavy emails are losing The rules of email changed in 2025 Gmail, Yahoo, and Microsoft now judge every message by how it looks, not just what it says Their filters are ruthless. If you send glossy, image filled emails, you are losing reach, replies, and revenue Here’s what changed in the last month: Gmail Promotions update, September 2025: ↳ “Most relevant” sorting and a new “Purchases” view. ↳ HTML/image heavuy layouts go straight to Promotions, not Primary Why image-heavy HTML is a liability: Spam filters still punish high image-to-text ratios ↳ Too many images trigger spam rules. ↳ These are the same signals used by spammers Large emails get clipped ↳ Gmail cuts off emails above 102 KB ↳ Important content and unsubscribe links can disappear ↳ Engagement drops, and your sender reputation suffers Formatting now decides your fate ↳ Gmail’s new models look at every pixel and line of code. ↳ Clean, text-based emails from real people reach the Primary tab. ↳ Banner-filled layouts almost never do. Why plain text is winning: Plain text feels human ↳ Smaller, cleaner, and more personal ↳ Looks like a real conversation, not a broadcast Our 2025 outbound/lead gen checklist: Keep emails image free ↳ No logos or imagage, no hero banners Design emails for Primary inbox ↳ Marketing updates go to Promotions ↳ 1:1 feel outreach goes to Primary The bottom line is that the 2025/26 inbox rewards authenticity If you still rely on glossy HTML templates, you are feeding an algorithm that filters by design. Plain text, personalised email is not just cleaner. It is compliant, higher performing, and built for the future

Cold email has always had one golden rule: keep it plain. No links. No images. No videos. Why? Because the second you dropped in a Calendly link or a Loom, your email was as good as gone… straight to spam. That’s why this new release from Maildoso is such a big deal. They’ve launched Global Custom Domain Tracking: a feature that finally makes it safe to add links, videos, and images in your first email without tanking deliverability. Think about what that unlocks for outbound teams: - Drop a direct booking link right away instead of waiting until the 3rd or 4th touch. - Share a Loom or product demo that actually shows value instead of trying to describe it. - Add a testimonial screenshot or image that builds trust instantly. In their internal testing, emails that included videos converted 3–4x higher than text-only emails. That’s not a small lift => that’s a whole new playbook. For years, everyone in cold outreach has had to choose between deliverability and creativity. Now you don’t have to. This isn’t just a “feature update.” It’s a shift in how teams can approach outbound: - Personalization can be visual, not just text-based. - Calls-to-action can be direct, not hidden two scrolls down. - Prospects get to see you, hear you, and trust you faster. If you’ve been frustrated by the limitations of plain-text outreach, this might be the unlock you’ve been waiting for.