Blog
Guides on email marketing, verification and the API.
Email marketing 101: send your first campaign in 5 steps
From building your list to reading the results, a practical step-by-step guide to your first campaign.
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7 subject line tactics that lift your open rate
The subject line decides your campaign's fate. Lift your open rate with seven battle-tested tactics.
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What is segmentation? How to get the right message to the right person
Split your list by behavior and attributes with real-time segmentation, and watch conversions climb.
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Why your bounce rate climbs — and how to bring it down
A high bounce rate burns your IP reputation. Here's what causes it and how 9-stage verification fixes it.
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What is a spam trap? The invisible danger in your list
Spam-trap addresses aren't real people. Email them and you'll land on a blacklist.
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List hygiene: why a clean list saves more than money
Emailing dead addresses costs you more than budget — it costs you your reputation. Here's the ABC of list hygiene.
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Send your first campaign with the Qulaq API in 10 minutes
Grab a JWT, create a campaign, hit send: the foundation of marketing automation in three requests.
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Real-time email events with webhooks
Stop polling for bounces and complaints. Push them straight into your system with HMAC-signed webhooks.
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Real-time email verification on your signup form
Catch invalid addresses the moment someone signs up: integrating the verify API into your form.
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