Skip to content
English
Show submenu for translations
Contact us
Sign in
Blog
Open main navigation
Close main navigation
Blog
English
Show submenu for translations
Contact us
Sign in
Back to Letterhead
Back to Letterhead
How can we help?
There are no suggestions because the search field is empty.
Help Center
Settings
Settings
How to customize your store, newsletters, and integrations
Letterhead's Recipient Validation
Account Management
How can I find my Organization's API Key?
How Do I Add a Team Member to Letterhead?
How to Reset Your Password
Domain Management
How do you opt-out of double opt-ins?
How do I set up my custom sending domain for my organization or my channel?
![LH-2025-Logos-15.png]](https://help.tryletterhead.com/hs-fs/hubfs/LH-2025-Logos-15.png?height=31&name=LH-2025-Logos-15.png){kind=small}