CRM allows you to control the file types of the attachments that enter your CRM.
If you want to restrict/allow a particular file type to be added as an attachment you would need to edit the list in the System Settings –> General tab.
If you ever happen to come across the following screen while attaching a file, its probably because the file type or file size has been restricted.
To control the file size of the attachment, you can reset the setting on the Email Tab of the System Settings.
Does the “Set blocked file extensions for attachments” option block attachments for email messages too or only note attachments?
“Set blocked file extensions for attachments” option blocks all attachments for both Email Message and Notes.
Thanks!