SMTPOAuthExternalProxyHost1
Use this to specify the external proxy host for the backup SMTP server.
If a proxy is needed to contact microsoft.com, then enter the host name for the proxy here. This is optional for setting up OAuth2.
Use this to specify the external proxy host for the backup SMTP server.
If a proxy is needed to contact microsoft.com, then enter the host name for the proxy here. This is optional for setting up OAuth2.