> 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.md).

# Email Configuration & Deliverability

Configure email sending infrastructure, custom domains, and troubleshoot delivery issues to ensure your emails reach attendee inboxes.

## Setup & Configuration

* [**How to Set Up a Custom Sender Email Domain**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/setting-up-custom-sender-email-domain.md) — Configure a branded sender domain with DNS verification.
* [**How to Configure an SMTP Server**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/smtp-server.md) — Set up your own SMTP server for email sending.
* [**Merge Tags Reference**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/merge-tag.md) — All available merge tags for personalizing email content.
* [**How to Add Custom Field Merge Tags**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/how-to-add-custom-field-merge-tags-for-automated-email.md) — Include custom registration field data in automated emails.
* [**How to Turn On/Off Automated Reminder Emails**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/how-to-turn-onoff-automated-reminder-emails.md) — Control automated reminder email sending.

## Deliverability

* [**How to Fix Emails Going to Spam**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/emails-going-into-attendees-spam-mailbox.md) — Diagnose and resolve spam delivery issues.
* [**How to Avoid Emails Going to Spam**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/how-to-avoid-emails-goes-to-spam-folder.md) — Best practices for email deliverability.
* [**Troubleshooting Email Delivery Issues When Logs Show Success**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/troubleshooting-email-delivery-issues-when-logs-show-successful-sending.md) — Investigate delivery failures despite successful sending logs.
* [**Email Unsubscribe Feature**](/knowledge-base/outreach-channel/email-configuration-and-deliverability/email-unsubscribe-feature.md) — How the unsubscribe mechanism works for attendees.

## Common Questions

* **Why are my emails going to spam?** — Common causes include missing SPF/DKIM records, new sender domains, and content triggers. See [spam troubleshooting](/knowledge-base/outreach-channel/email-configuration-and-deliverability/emails-going-into-attendees-spam-mailbox.md).
* **Can I use my own email domain for sending?** — Yes. See [Custom Sender Email Domain](/knowledge-base/outreach-channel/email-configuration-and-deliverability/setting-up-custom-sender-email-domain.md).