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Everything you need to start building connections that matter.
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Email best practices
8 min
How many marketing emails is too many?
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![Hermes dancing on a laptop next to a mug](https://images.ctfassets.net/y6oq7udscnj8/1U13m7sPMRW3tmx2f3mVF1/9c3de33e289a3fd33b4dacd91f4311a9/Deliverability_5_-_Version_1.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Email best practices
7 min
100+ email spam words to avoid in your email marketing campaign
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Deliverability
11 min
Single vs. double opt-in: Which one should you use?
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![Hermes sitting with laptop an orange sofa, Hera talking](https://images.ctfassets.net/y6oq7udscnj8/4n9Cr44PxegSP5RBxQwcx0/5659374908c23480f0aab662dbf66b15/Email_Design_1_-_Version_4.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Marketing
8 min
Customer communication strategy: Email promotions or mobile messaging?
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Email best practices
14 min
20 newsletter ideas to create engaging emails
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Email best practices
14 min
How to write a good newsletter
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Deliverability
19 min
What is phishing?
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Email best practices
11 min
Landing page optimization best practices, tips, and tools to boost conversion rates
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Deliverability
13 min
What is DMARC and how does it work
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Company
7 min
Email Academy: How and why you should set up a custom domain
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![Hermes delivers an email to a goddess next to a big number three over a green background.](https://images.ctfassets.net/y6oq7udscnj8/1MPoNpyEHsooDzyfp5olGH/387bd3c58a2f4e8a6e6ef09aa89efd79/Email-Deliverability-Configura-DKIM-en-3-pasos.png?w=2048&h=960&q=50&fm=png)
Deliverability
10 min
DKIM setup: How to create, configure, and set up DKIM in 3 easy steps
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![Hermes with a speakerphone above 4th of July fireworks](https://images.ctfassets.net/y6oq7udscnj8/1PkwYOJRnLHORKU8Kf6oni/0f915d9c523e3f7f9387638e56ef701a/24cw23_-_Blog_Header_-_ID4.jpg?w=2160&h=1440&fl=progressive&q=50&fm=jpg)
Marketing
7 min
Red, white, and blue! 4th of July email marketing ideas and examples
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Email best practices
9 min
The email marketer’s checklist for a relaxing summer vacation
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Email best practices
10 min
Summer email marketing: Best newsletter ideas and subject lines for the summer
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Product
6 min
How to set up a double opt-in subscription form via Mailjet’s API
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Marketing
6 min
Why choose DKIM 2048 over 1024?
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![Hermes and a Goddess look at a screen](https://images.ctfassets.net/y6oq7udscnj8/4waMeNOMHz5Dxvlhnrt4Ae/e957840b6c55e5c46f04c21163dccabc/Email_Marketing_2_-_Version_3.jpg?w=2048&h=960&fl=progressive&q=50&fm=jpg)
Email best practices
13 min
66+ email subject lines that beg to be opened
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Email best practices
7 min
Why shouldn’t you attach PDFs to an email?
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Deliverability
7 min
Noreply email address: Best practices for your email strategy
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Deliverability
8 min
What is the return-path email header and why do you need to customize it?
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Deliverability
7 min
All you need to know about transactional email
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Marketing
8 min
Will artificial intelligence (AI) replace copywriters?
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Email best practices
7 min
What is a good email open rate and how to improve it
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Marketing
9 min
Should brands use social media for customer communication?
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