Finding Incorrect or 'Bounced Back' error emails you sent that erred trying to reach a guest
Posted by Jeff Tweddale on 01 Sep 2015 10:42 AM

Some customers send Letters (such as Confirmation Letters, Group Contracts, Registration Letters, etc) to email addresses that aren't valid, but don't receive a 'bounce back' notification.  They want to know 'Why?'

No one will really know with 100% certainty why and whether a bounced email will come back to you when emailed from our BookingCenter servers (or any email service). A 100% level of ‘guarentee' is inherently non-guaranteeable due to the anarchist nature of the Internet.

But you can understand the dynamics:

First BookingCenter sends an email to an address, and it has a "Reply To:" address built into it, which is the email address used in the Settings | Site Details field ( All email servers are supposed to adhere to this, as it's published in the RFC spec that any bounce back emails are notified to the "Reply To:" email address. If there is no "Reply To:" address, the rules state to use the "FROM:" address, which is also the email address used in the Settings | Site Details field.

This process is the normal behavior for a 'bounced email'. But there is no way to insure that the domain name (such as '') is adhering to the RFC rules. The best way to test for bounced emails, and how they will appear to you and your staff, is to send some from your BookingCenter system to unknow users at your own domain name (such as and see how the 'bounce back' works.

Remember, BookingCenter has no control over your email provider and how they route 'bounced emails' or 'spam' emails sent to unknown addresses on your domain. Nor do we have control whether the RFC rules are being followed by the email servers you are sending incorrect emails to. But hopefulluy this article will help 'shed light' on the issue and allow you to practice for this rare eventuality.


For properties that choose to use their domain based email, and have SPF enabled with a hard fail condition, we recommend they add an SPF record for our netblock .  


MyPMS currently does not support DKIM signing of emails.

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