Only 13 % of emails are typed by humans, hostinger data show
The inbox is dead. Long live the machine. Hostinger’s engineers fed one billion messages through their pipes last month and discovered that only 13 % of the planet’s email traffic is still composed by actual fingers on keyboards. The rest is a ghost parade of receipts, alerts, drip campaigns and credential-phishing bots—an invisible supply chain humming underneath what we still call «correspondence».
The 56 % that never see daylight
More than half of everything sent gets vaporised before a human can delete it manually. Firewalls, reputation scores and probabilistic filters conspire in milliseconds; 34 % of the vanishing acts trace back to phishing rings and malware drones, 22 % to «marketing» so aggressive it smells like fraud, 11 % to domain misconfigurations that brand senders as clueless or criminal. The sieve is now the infrastructure.
Of the lucky 44 % that land, the origin labels read like a SaaS museum: Slack, Stripe, Salesforce, Shopify, newsletter engines, social notifications, booking confirmations, password resets. Corporate tools and SaaS own 22 % of delivered volume; personal mail providers—Gmail, Outlook, the usual suspects—claim 20 %. Marketing platforms grab 16 %, social nets 15 %, low-volume senders 10 %. Add personal mail and the small fry together and you finally reach the 13 % slice touched by a human. Everyone else is cron job and growth hacker.
Metrics are lying to your dashboard
Open rates? Click-throughs? Vanity tattoos. When 87 % of traffic is synthetic, the pixel that fires inside the preview pane no longer signals attention; it merely confirms that another bot executed its render test. Edgaras Lukosevicius, the engineering manager who signed off on the report, puts it bluntly: «Companies keep optimising numbers that stopped meaning anything. The question isn’t whether the user opened the mail, but whether they still want to receive it.»
Reputation rot makes the maths worse. A third of rejected mail carries a sender score scarred by past sins—IP neighbours who spammed, lists that never cleaned bounces, warm-up sequences that turned ice-cold. ESPs now apply collective punishment; one bad client can tilt an entire /24 into purgatory.
Marketing departments feel the pinch as drip campaigns drown in their own runoff. Inbox fatigue is measurable: when everything is urgent, nothing is. Users don’t unsubscribe—they ghost, they filter, they let algorithms starve the noise. The industry’s response so far? More triggers, more segments, more «personalised» tokens that still smell of merge tag.
The quiet takeaway buried in Hostinger’s tables is that deliverability is no longer a technical problem; it’s a consent crisis. The channel that once felt like a letter from a friend now arrives as a vending machine that never stops blinking. Strip the spam, strip the automation, and what remains is the thinnest sliver of human voice—13 %, and shrinking.