Subject: %(subject_header_value)s
From: %(from)s
To: %(to)s
Date: %(date)s

Hi,

%(sender_display_name)s has invited you into a room %(bracketed_room_name)s on
Matrix. To join the conversation, either pick a Matrix client from
https://matrix.org/docs/projects/try-matrix-now.html or use the single-click
link below to join via Riot (requires Chrome, Firefox, Safari, iOS or Android)

https://riot.im/app/#/room/%(room_id)s?email=%(to_forurl)s&signurl=https%%3A%%2F%%2Fmatrix.org%%2F_matrix%%2Fidentity%%2Fapi%%2Fv1%%2Fsign-ed25519%%3Ftoken%%3D%(token)s%%26private_key%%3D%(ephemeral_private_key)s&room_name=%(room_name_forurl)s&room_avatar_url=%(room_avatar_url_forurl)s&inviter_name=%(sender_display_name_forurl)s&guest_access_token=%(guest_access_token_forurl)s&guest_user_id=%(guest_user_id_forurl)s

Matrix.org is an open standard for interoperable communication: supporting group
chat, file transfer, voice and video calling, integrations to other apps, bridges
to other communication systems and much more.

thanks,

Matrix