# FAQ

Frequently asked questions

- [How to Submit Data Requests](https://help.tryletterhead.com/how-to-manage-audience-data-requests-dsrs)
- [As a subscriber, can I submit an article through Letterhead?](https://help.tryletterhead.com/as-a-subscriber-can-i-add-article-in-our-newsletter)
- [When are welcome letters triggered?](https://help.tryletterhead.com/when-are-welcome-letters-triggered)
- [Why can't I upload an image to the image block?](https://help.tryletterhead.com/why-cant-i-upload-an-image-to-the-image-block)
- [Why Can’t I Include Attachments in My Newsletter?](https://help.tryletterhead.com/why-cant-i-send-an-attachment-with-my-newsletter)
- [What Happens If a Global Ad Was Scheduled but No Newsletter Was Sent?](https://help.tryletterhead.com/if-a-global-advertisement-was-planned-for-yesterday-but-the-newsletter-wasnt-distributed-will-it-be-automatically-included-in-todays-newsletter-our-practice-is-t-1694531430844)
- [Tracking & UTM codes in Letterhead](https://help.tryletterhead.com/tracking)
- [What's the Difference Between "Hide from Archive" and Public Newsletters?](https://help.tryletterhead.com/what-is-the-difference-between-private-and-public-newsletters)
- [Why does my antivirus give me a warning when I click on the links on the news page?](https://help.tryletterhead.com/when-i-try-to-access-one-of-the-links-on-your-news-page-i-get-a-warning-from-my-anti-virus)
- [What Emojis Does Letterhead Support?](https://help.tryletterhead.com/emojis)
- [How to Clear Cache and Cookies](https://help.tryletterhead.com/how-to-clear-cache-and-cookies)
- [What Permissions Does the Channel Administrator Have?](https://help.tryletterhead.com/what-permissions-does-the-channel-contributor-have)
- [What Permissions Does the Organization Administrator Have?](https://help.tryletterhead.com/what-permissions-does-the-channel-administrator-have-1)
- [What Permissions Does the Content Contributor Have?](https://help.tryletterhead.com/content-contributor-role)
- [Why am I receiving DMARC Reports](https://help.tryletterhead.com/why-am-i-receiving-dmarc-reports)