It might not capture everyone but email is fine.
Any owner can do it.
Emails are an address for service if the OC has been notified of an email for that purpose.
“Secondly, even if an address for service of notice is “information … about an individual”, part of the primary purpose of the collection of lot owners’ addresses and their inclusion on the strata roll is so they can be contacted by other lot owners and the Executive Committee of the Owners Corporation.”
Legge v Network Strata Services Pty Ltd (Strata and Community Schemes) [2013] NSWCTTT 45 (8 January 2013)
Just want to say if you didn’t have approval to put up noticeboards in the lifts that is naughty.