Yesterday afternoon, after we got a temporary mail transfer server working (see the "bit of a help" posting elsewhere on this page), the end of life date for this temporary server was rather arbitrarily set at April 3 (four weeks). We can't move our own office email to a new permanent service as long as the temporary transfer service is running, thus we have to set an end date.
Having had some time to think about it, however, it makes more sense to push the end of life date back a week to April 10, when the OPLIN Board will meet and can discuss our path forward. So plan on the transfer server being operational until at least April 10.