M-Files SMTP Notifications – “SendAsDenied” when triggered by user

Hi,

I have configured notification rules in M-Files according to the official guide (Service type: SMTP):
Notifications – M-Files User Guide

We are using a dedicated account for sending out emails, e.g. noreply@domain.com. All emails sent from M-Files should be sent from this account.

The issue:

  • System-generated emails (for example, Object Destroyed) are sent successfully.

  • User-triggered notifications (for example, assignments) fail to send.

Error message:

Sending of the e-mail message failed. Message details: "Tried to send notification to User ID: 123, as Individual message, Event type: 18". The message was not sent.
The e-mail component returned an error: SMTP returned error.
554 5.2.252 SendAsDenied; noreply@domain.com not allowed to send as username@domain.com;
STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied;
Failed to process message due to a permanent exception.

So it looks like M-Files is trying to send as the individual user (username@domain.com) instead of the configured sender (noreply@domain.com).

Why is M-Files still trying to use the user’s email address as the sender for these notifications, even though I have defined a dedicated SMTP account and sender address?
And what is the correct way to configure it so that all notifications are sent from the dedicated account?

Parents
  • You can modify this behavior from Advanced Vault Settings > Notifications > New Assignment Sender from Settings. When set to "Yes", M-Files will use the dedicated account for all notifications.

    The rationale behind using the user’s email address as the sender is to allow recipients to reply directly, for example, to request additional guidance if needed. However, some mail servers may block this type of impersonation. In such cases, you can enable the configuration option above to ensure reliable delivery.

Reply
  • You can modify this behavior from Advanced Vault Settings > Notifications > New Assignment Sender from Settings. When set to "Yes", M-Files will use the dedicated account for all notifications.

    The rationale behind using the user’s email address as the sender is to allow recipients to reply directly, for example, to request additional guidance if needed. However, some mail servers may block this type of impersonation. In such cases, you can enable the configuration option above to ensure reliable delivery.

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