This article is for customers who use Guest Engagement and/or SiteMinder Pay.
To enhance security, Booking.com has implemented settings that block any system (including SiteMinder) from sending messages to guests unless the system's e-mail address and any included links are approved.
If SiteMinder's domains are not on your Booking.com e-mail allowlist, your payment requests and Guest Engagement messages will not reach guests who booked through Booking.com.
SiteMinder domains to add
Add the following to your Booking.com allowlist.
@app.siteminder.com
@guestjoy.com
siteminder.com
guestjoy.com
What do I need to do?
To ensure that SiteMinder payment requests, or Guest Engagement communications, are received by your guests that booked through Booking.com please take the following steps.
Add domains to your allowlist for Booking.com
Log in to your Booking.com Extranet.
Go to Property > Messaging preferences > Security settings.
Complete the two-factor authentication process.
Ensure Block all email communication is set to Off.
Go to Your email addresses and click Add email address.
Enter each e-mail domain and click Add email address to save:
@app.siteminder.com
@guestjoy.com
Ensure Block all links is set to Off.
Click Add a link and enter each link domain:
siteminder.com
guestjoy.com
⚠️ You need admin rights and two-factor authentication (2FA) to access and edit these settings in the Booking.com extranet.
💡 If you manage multiple properties, log in to your Booking.com group account and select one property. Follow steps 2-8 above, then click Apply to all properties and confirm.