Track Undeliverables mails inside a mailbox

(1) Share

Report

Posted on by VK-25071541-0

116

Dear Community,

I have an unmonitored shared mailbox that has some undelivered emails. Is it possible to get info from the emails to whom the delivery failed from all those emails?

Body:

Your message to def@blxvc.com couldn't be delivered.

def wasn't found at blxvc.com.

Subject- Undeliverable: Notice of

Thanks

Categories:

Building flows

I have the same question (0)

All responses (5)

Answers (0)

Suggested answer

Michael E. Gernaey 53,433 Super User 2025 Season 2 on at

Like (0)

Report

Hi @VK-25071541-0

Totally do able.

You could setup a trigger on incoming emails.

You could setup a trigger condition on Subject and or Body to check if the words couldn't be delivered are there

Then you grab who the original receipients were from the mail dynamic properties,

Then email yourself or log it somewhere.

If this answers your question, please mark as such and maybe a like.

If you need help building it, please start another question thread for building it out.

Was this reply helpful? Yes No
VK-25071541-0 116 on at

Like (0)

Report

Hi @Michael E. Gernaey , we have used when an email arrives V2 trigger but it doesn't always get hit Rather once in a while it is getting hit. Not sure the cause. should The connection to create flow and shared mailbox be different?

Was this reply helpful? Yes No
VictorIvanidze 13,073 on at

Like (0)

Report

Hi @VK-25071541-0,

modify the trigger this way and it will work reliably:

Was this reply helpful? Yes No
Suggested answer

David_MA 12,982 Super User 2025 Season 2 on at

Like (0)

Report
I am not sure if this is what you're asking, but this is how I handle undeliverable e-mails to a shared mailbox:

Use the trigger When a new mail arrives in a shared mailbox.

Add a trigger condition so it triggers only on undeliverable messages. For my use case, that is:

@contains(triggerOutputs()?['body/subject'],'Undeliverable:')

Then I use the Forward an email action to forward the message to the person/group who should be notified.

The flow is this simple:

The compose action is just to make it easier to view information from flow runs.

Was this reply helpful? Yes No
Suggested answer

David_MA 12,982 Super User 2025 Season 2 on at

Like (0)

Report

P.S. To get the e-mail address, you could try an expression like this on the body of the e-mail:

substring(outputs('Html_to_text')?['body'], add(indexOf(outputs('Html_to_text')?['body'], 'Your message to '), 14), sub(indexOf(outputs('Html_to_text')?['body'], ' couldn''t be delivered.'), add(indexOf(outputs('Html_to_text')?['body'], 'Your message to '), 14)))

Note, I have not tested this, and it requires that the string always follows this pattern: Your message to e-mail.address@domain.com couldn't be delivered. You will also need to run the body of the e-mail through the HTML to text (preview) action.

Was this reply helpful? Yes No