> For the complete documentation index, see [llms.txt](https://eventx-hq.gitbook.io/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://eventx-hq.gitbook.io/knowledge-base/outreach-channel/email-configuration-and-deliverability/emails-going-into-attendees-spam-mailbox.md).

# Emails going into attendee's spam mailbox

## Emails going into attendee's spam mailbox

There are multiple reasons on why an email falls into the attendee's spam/junk mailbox.

## Remarks

In our findings, when using the same email subject and content:

1. If the recipient's email domain server is **gmail.com** or uses **Google Workspace Mail Server**, there is a very low chance that the email will be flagged as spam and land in their spam mailbox.
2. However, if the recipient's email domain server is **outlook.com** or uses **Microsoft Mail Server**, there is a higher likelihood of the email being marked as spam and ending up in their spam folder.

![](/files/x51gSX0UoxjgTgUOxUXe)

## Frequently Asked Questions

### Q: Does the recipient's email provider affect whether emails land in spam?

**A:** Yes. In EventX's findings, Gmail/Google Workspace users have a very low chance of emails being flagged as spam, while Outlook/Microsoft Mail Server users have a higher likelihood of emails landing in the spam folder.

### Q: How can I improve email deliverability to Outlook users?

**A:** Set up a custom sender email domain, avoid spammy content, include an unsubscribe link, and regularly check your sender reputation with tools like Mail Genius.