Before sending an email to your subscribers, you can send a test email to yourself or to someone else. This will let you preview what the post will look like when it's sent as an email to your readers.
If you're sending a test email to someone else, ensure that that person and their email address is part of your publication team. You can send them an invite on your publication's Settings in the Team section. Once they've accepted your invitation to join your Substack team, you can change their role to an Admin or Contributor and then you'll be able to send them a test email.
1. On your draft post, select Preview (found on the top right corner of the page).
2. Once you're on the Preview Post page, select Share and enter an email address under "Send test email".
Tip: To send a test email to more than one email address, separate each email using a comma. You can also send a test email of the draft post by selecting "Settings" on the draft and scrolling to the "Send test email" section of the page.