MailCheap

How MailCheap works

Plain answers about your newsletter, your contacts, writing and sending issues, and your account. Building with the REST API or MCP? See the API and MCP docs.

Start

Getting startedSign in, set up your newsletter and send your first issue.

Your newsletter

Newsletter settingsName, sender, website, signups and the emails new subscribers get.Sender addresses and domainsSend from the shared address, or from your own domain once its DNS records are in.Website and signupsEach newsletter's website, its issue pages, and how people sign up.Design and themesPick a theme for your website and emails, then change its colors, fonts and shapes.

Contacts

ContactsStatuses, segments, adding people by hand, unsubscribes, exports and deleting.Importing contactsBring your list from another platform as a CSV file, and what the import leaves out.List cleanupWhat happens to contacts who stop opening: a last-chance email, then dormant.

Writing and sending

Writing an issueThe editor, pictures, moving blocks, the preview and test emails.Sending and schedulingThe checks before sending, send now or later, who gets it, first sends in steps and reports.Bounces, complaints and pausesWhat bounces and spam complaints do, when a send pauses and when an account is blocked.

Account

API and AI assistantsRun everything from code, or from ChatGPT, Claude and other assistants.Your accountSigning in, connected apps, and deleting or restoring your account.

Common questions

Why did my campaign pause?
Too many of its emails bounced or were marked as spam: more than 2% hard bounces (at least 5) or 0.08% complaints (at least 2). Emails already sent stay sent, and you can resume the rest from the campaign's page. Past 5% bounces or 0.3% complaints, the whole account is blocked. Read more
Why do new contacts get my issue in steps?
The first time you email contacts who never got an email from you, a slice of them goes first. The rest follows 3 hours later if the slice's bounces and complaints stay low. A list with problems shows itself in that slice, before it reaches everyone. Read more
What happens to subscribers who stop opening?
With list cleanup on, a contact who ignored 6 issues in a row and showed no sign of life for 180 days gets one last-chance email instead of your issue. If they don't click it, they become dormant at your first send 14 days or more after it: they stay in your list, but stop getting issues and stop counting as subscribers. Read more
Can I unsend an email?
No. Emails can't be recalled once they go out. While a send is still going out, you can pause it: what's sent stays sent, and the rest waits until you resume. Read more