SMTP Notifiers - is there a maximum number of SMTP mail addresses?

Hi,

sorry if the question is considered stupid but I seem to be going in circles on the following issue.

For various purposes I have configured three SMTP notifiers with different sender mail addresses in a notify.yaml and they all work fine for quite a while in the various automations.

Now I would like to add a fourth one in the same way, but when I do so and set up a new automation in the UI, the UI offers the new notification and two of the three established ones. These three then work fine, but the “old” one that got lost in the UI (despite still being there in the notify.yaml) causes an error when called by an automation (“the automation uses an unknown action.”).

Therefore my question: am I trying something that is not possible? Is there a maximum number of smtp notifies that is accepted?

Advice would be much appreciated. Thanks a lot in advance!

Bernd

Indeed there is a maximum but not on the side of homeassistant but on the side of the hosting company.

When updating the notify.yaml apparently all 4 (or more) email addresses get verified by homeassistant basically at the same time. My hosting company considers more than 3 connections from the same IP address in the same moment as too many and sends an error message which makes homeassistant consider the email address as not ok. Thus no service being offered in the UI.

So, question answered, intention to be achieved in a different manner…

Thanks to all who have read the post.

Bernd