Pay as you go email marketing: how credit pricing compares to subscriptions
Contact-based, send-based and prepaid credit pricing reward very different sending habits. Here is how to work out which model fits yours before you commit.
Email marketing & deliverability blog
Practical, no-hype guides for people who send email: list verification, authentication, deliverability and campaigns that get results.
Featured guide
Email verification · 6 min read
How to verify an email list before you hit send
A practical guide to email list verification. When to verify, what every result status means, what to do with each group, and the honest limits of any verification check.
Read the guideSPF, DKIM and DMARC explained in plain English
What SPF, DKIM and DMARC actually do, what the DNS records look like, how alignment works, and how to move to an enforced DMARC policy without breaking your own mail.
Gmail and Yahoo bulk sender requirements, a practical checklist
A clear checklist of the Gmail and Yahoo bulk sender requirements, what applies to every sender versus bulk senders, and how to meet each item without guesswork.
Email marketing for small business: a step-by-step starter plan
A practical plan for small businesses starting email marketing, from collecting subscribers legally to your first three campaigns and a simple 90-day schedule.
How to improve email deliverability, 12 practices that actually matter
Twelve concrete practices to improve email deliverability, from authentication and list verification to warm-up, sunsetting inactive contacts and testing before you send.
Catch-all email addresses: what they are and how to handle them safely
Catch-all domains accept mail for any address, so verifiers cannot confirm whether a specific mailbox exists. Here is why that matters and how to send to them safely.
Hard bounce vs soft bounce, what the difference means for your list
The difference between hard and soft bounces, what the SMTP codes mean, how blocks and complaints differ, and exactly what to do with each so bounces stop hurting your reputation.
Double opt-in vs single opt-in: which should you use?
Single opt-in grows your list faster; double opt-in gives you cleaner data and stronger proof of consent. Here is how to choose, and how to protect list quality either way.
Email subject lines that get opened: principles and 30 examples
Clear, specific and relevant beats clever. Learn the principles behind subject lines people open, with 30 examples by campaign type and a simple way to test your own.
Verify your list and send your next campaign today
Create a free account in under a minute. No subscription — buy credits only when you need them.