"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."
"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?