> [!CAUTION]
> **Caution:** This documentation covers Edge for Private Cloud 4.18.01, which is no longer supported. Google does not provide security patches, bug fixes, or technical support for this version. The current supported version is 4.54.00. See the [Edge for Private Cloud documentation](https://docs.apigee.com/private-cloud/latest/overview) for the current version, or [All versions](https://docs.apigee.com/private-cloud/versions) to compare releases.

*Edge for Private Cloud v4.18.01*

An SMTP server allows the Edge UI to send emails. For example, the Edge UI can send an email
to assist a user in recovering their UI password.

At install time, you can specify the SMTP information. To change the SMTP information, or if
you deferred SMTP configuration at the time of installation, you can use the apigee-setup utility to modify the SMTP
configuration.

You can change any or all of the following information:

- SMTP host, such as smtp.gmail.com
- SMTP port, such as 465 if you are using TLS/SSL
- SMTP username and password
- SMTP "From" email address

To update the SMTP information:

1. Edit the configuration file that you used to install Edge, or create a new configuration file with the following information:  

   # Must include the sys admin password  
   APIGEE_ADMINPW=***sysAdminPW***   
   # SMTP settings  
   SKIP_SMTP=n  
   SMTPHOST=smtp.example.com   
   SMTPUSER=smtp@example.com # 0 for no username  
   SMTPPASSWORD=smtppwd # 0 for no password  
   SMTPSSL=n  
   SMTPPORT=25  
   SMTPMAILFROM="My Company \<myco@company.com\>"
2. Run the apigee-setup utility on all the Edge UI nodes to update the SMTP settings:  
   \> /opt/apigee/apigee-setup/bin/setup.sh -p ui -f ***configFile***  

   The apigee-setup utility restarts the Edge UI.