Telegram is a cloud-based instant messaging and voice over IP service developed by Telegram Messenger LLP.
Send working group meeting links to their channels and confirm delivery.
Your group gets the meeting link and start time in its channel, and the organizer gets a reply confirming delivery.
Post a twice-daily roundup of inbox requests needing follow-up.
Keep your team current with an email summarizer that posts morning and evening inbox digests, including requests and deadlines.