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Lettermint

Knowledge Base

Find guides, FAQs, and tips for using Lettermint. Explore our resources to get the answers you need for sending transactional emails.

Guides

10 articles

Guides

Deliverability

10 articles

Deliverability

Definitions

8 articles

Definitions

Product

4 articles

Product

Latest articles

Deliverability

Managed DKIM and automatic key rotation

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Product

What is Delivery Health and does it affect your emails?

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Guides

How to send a newsletter with Mailcoach and Lettermint?

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Guides

How to send a newsletter with Listmonk and Lettermint?

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Deliverability

Why are my emails going to spam? Common causes and how to fix them

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Definitions

What are email headers and what do they tell you about your emails?

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Definitions

What is the List-Unsubscribe header in newsletters and marketing emails?

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Guides

How to Add DNS Records to AWS Route 53 for Lettermint?

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Deliverability

Stop bot signups and prevent spam complaints and delivery issues

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Definitions

What is MX (Mail Exchange)?

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Deliverability

Outlook blocks SVG images in emails, here's what you need to know

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Guides

How to add DNS records to Neostrada for Lettermint?

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Guides

How to add DNS records to TransIP for Lettermint?

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Guides

How to add DNS records to Cloudflare for Lettermint?

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Guides

How to add DNS records to Domain Chief for Lettermint?

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Product

Why is there an automatic unsubscribe link in broadcast emails?

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Deliverability

Why is my email blocked? Policy Rejected explained

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Definitions

What is SMTP?

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Definitions

What is DKIM2?

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Deliverability

What is an email subdomain and when should you use one

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Deliverability

How to prevent your emails from going to spam during holidays (Gmail & Outlook)

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Deliverability

What is greylisting and why doesn't email arrive immediately?

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Definitions

What is DKIM?

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Guides

Using Lettermint SMTP for Synology Email Notifications in DSM

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Definitions

What is SPF?

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Definitions

What is DMARC?

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Guides

How to set up Apple Branded Mail for your business or brand?

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Deliverability

Test emails with our test email addresses and prevent problems

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Account

Verified account required to send emails, this is why

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Product

What is the Difference Between Transactional and Broadcast Emails?

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Account

How to use a Discount Code?

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Product

Send without domain limitations using our add-on

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Deliverability

Understanding email statuses: hard bounce, delivered, pending, and more

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Guides

Integrate Lettermint in WordPress with WP Mail SMTP

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