This is part public awareness and part actual question for better workarounds.
Overall, we have recently discovered (the hard way) that emailing via an Azure Action Group is unreliable and occasionally fails. Basically, sometimes their IPs get blacklisted for various reasons (very common). They have nothing in place to alert those relying on an email notification that it failed, even though they have all the information they need to do so (they showed me a screenshot showing the SMTP failure due to the IP blacklisting from their log). The Azure portal will still show "fired". And, so, it just fails silently in the background with no indication to the user it was never sent. According to one of the technical Azure reps we have discussed this with:
The way of identifying a failure is to evaluate any kind of rejection message received from the target server but those are not guaranteed and not generated in all scenarios. Take into account that email actions are provided free of charge and performing post-send operations to try and verify delivery would consume additional computing that would make providing this notification mechanism free of charge less desirable
I know that many rely on these for production notifications of various scenarios. You should not rely on this going forward, or at least have a backup in place (e.g. SMS, web-hook, etc).
I would like to know if anyone has experienced this as well and, if so, what is the better, more reliable method to use.
Thanks in advance!
