# Getting notified of "mailer daemon" errors

**URL:** <https://forum.kirupa.com/t/getting-notified-of-mailer-daemon-errors/302837>\
**Category:** programming\
**Created:** [January 8, 2010, 10:21am UTC](https://forum.kirupa.com/t/getting-notified-of-mailer-daemon-errors/302837 "2010-01-08T10:21:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![IQAndreas](https://avatars.discourse-cdn.com/v4/letter/i/f08c70/32.png) [@IQAndreas](https://forum.kirupa.com/u/IQAndreas)\
**Post date:** [January 8, 2010, 10:21am UTC](https://forum.kirupa.com/t/getting-notified-of-mailer-daemon-errors/302837/1 "2010-01-08T10:21:08Z")

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On a site I’m working on, users are allowed to create their own guestlist with name, email address, and a few more properties.

**Is there any way to let the user know if an email they attempted to send was unable to send** , or received one of those infamous “mailer daemon email address not found”? They don’t have to be notified immediately (in fact, I believe the receiving email server won’t send it until several minutes later)

They will likely be sending the emails in bulk, perhaps 20 or 30 at a time, so it’s important to know not only that a sending error occurred, but also which ones did not receive emails.