"We plan to defragment the thingamajig on March 1st. We're reaching out to those who might have an interest in case this might cause problems. Please let us know if you have concerns about the defragment. If we don't hear from you by March 1st, the thingamajig will be defragged."
Something like this?
"We're planning on defragging the thingamajig on March 1st unless objections are raised. Please send objections to manager@my.division.com"
Honestly, I've been doing this for decades with legal stuff: "Please confirm that my next pickup date for $CHILD is March 1st." often resulted in the other party just remaining silent and, when complaints against her not allowing the child out were made, she responded with "I never objected to that specific visit".
Using "Unless objections are received, I will fetch $CHILD on March 1st" stopped her from using that excuse.
It's a great way to deal with a difficult party who just wants to have as much creative misunderstandings as possible.
If I don't hear back from you by lunchtime, I WILL eat your leftovers.
After you’ve been on the wrong side of this dynamic you learn to always confirm things in writing. And to wait for the other person to go to the bathroom and unplug their desk phone so it looks like they’re ignoring phone calls. At the same time, you use your personal vpn to try a few dozen failed logins to their email from 2 or 3 other continents, then drop a hint to their boss alluding to a vague but urgent problem in their domain so the boss will want to get in touch with them immediately.
I once playfully threatened a helpdesk senior manager: if you dont tell your team to shut to coffee pot off in the evenings I'm gunna start putting your LTO tapes into the carafe whenever Im forced to be here at 2AM cleaning a coffee pot so I don't take a box cutter to the entire patch panel.
Confrontation turns into a collaboration request.
What often happens if my manager objects is the urgency of "it's already happening" will result in him wanting to pause on it, if it's important to him.
Most of the time it's "ok, sounds good" where there's a clear trust between us. Or it might result in a "ok, sounds good -- just make sure so-and-so is aware too".
Maybe receiving party should also take active part in understanding the communication so we don’t put whole burden on sender.
Because that’s causing people to stop communicating which is the worst outcome.
I already had couple team mates - that people didn’t want to communicate with.