May I know how to resolve this? Thank you =)

Source: Send Outlook Mail Message
Message: Path does not exist. Verify the path is correct.
Exception Type: System.IO. DirectoryNotFoundException

Hi @Staff_Tan_Chee_Kian ,

Please verify that the attachment path is correct. It seems to be missing at the moment your activity is trying to send the email
You might try and test to send the email without any attachments, in order to see that the attachments path is the real issue here.

Hope this helps
Best regards,
Marius

Hello @Staff_Tan_Chee_Kian ,

Please verify if the file exists in folder before sending email.
Also you can check if the mentioned path is correctly declared in argument field.

Regards,
ninadv99

which Mail package version? you have the Open Editor option on the Send Email activity?