Hello Team,
We’ve received a request from customer if we could also include http /.msg file format as attachments while logging an Activity.
As for now, we only support jpg, jpeg, gif, png, bmp, pdf, doc, docx, txt, ppt, pptx, xls, xlsx, xlsm file formats. Can we also incude the requested formats, as well.
https://support.gainsight.com/Gainsight_NXT/Timeline/02User_Guides/Activity_Options

Thank You.