"From" name in Hesk Settings > is NOT set to an email address - Microsoft security policies will reject sending emails if the From name is an email address."From" email in Hesk Settings > Email is set to your Office365 email address.Instead of using a username/password combination, you are encouraged to set up OAuth authentication. To send emails using Office365 server, enter these details:
Here are the correct settings you should use to connect Hesk to (Microsoft 365): To use Hesk with Microsoft 365, upgrade to the latest version of Hesk and set up OAuth authentication. If you believe an attachment was removed by error, please contact the ITS Support Center who can assist with recovering it.įor more, see Safe Attachments Information.Effective October 1, 2022, Microsoft will begin to permanently disable Basic Authentication (username/password combination) for Exchange Online in all Microsoft 365 tenants, regardless of usage, except for SMTP Authentication.
Safe Attachments may cause a small delay in email delivery depending on the size of the attachments to allow the scanning to occur. If an attachment is detected by Microsoft Defender for Office 365 as unsafe, it will be removed from the email and replaced by a short text file named "Malware Alert Text.txt" to indicate to the recipient the malicious attachment file name and action taken. If the attachment is safe, it will be delivered as expected. Safe Attachments scans email attachments in incoming email messages for malicious content before being delivered to recipients. If you believe a site was blocked by mistake, please report it to the ITS Support Center by forwarding the message as an attachment to more, see Safe Links Information.
If the link is determined to be safe to view, it can be accessed as expected. If the link in the incoming message appears to be malicious, Safe Links will block access to the hyperlink and prevent the destination site from loading. This feature also re-writes URLs found in incoming emails with the following prefix. Safe Links scans URLs in incoming emails to determine if the hyperlinks are malicious.
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