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For Optimizely Content Management System (CMS) to send out email notifications, (for example, to users who are working with projects or content approvals), or if you are using [Forms](🔗) and want to send emails from form postings, you need to configure your email server.

Note

If you are using Optimizely Digital Experience Platform (DXP), see [Configuring the email server](🔗) for information on how to configure the email server for your websites.

Specify an SMTP server endpoint that is reachable from the site and is allowed to send emails using the specified from-address. The from-address is only used as fallback and can be overridden by, for example, notifications, forms, or any other features using the SMTP functionality built into .NET.

Configure settings in _web.config_:



For reference, see the MSDN article [<smtp> Element (Network Settings)](🔗).

## Default sender for notifications (optional)

Default settings for the sender in CMS notifications can be configured as follows: specify an email address and display name to be used in, for example, project or content approval notifications to editors. Note that these are defaults. It is possible for a notification to override these defaults with a custom sender. If `NotificationEmailAddress` is not specified, the from-attribute on the email settings described above are used; if no address is found, it is not possible to send notifications to users.