But I understand the manager’s reluctance to provide the owner’s emails. If you do email to all the other owners, some of them will complain to the strata manager about their email address being made available.
The simple answer is for a strata scheme to have its own website or email hub. Kind of like a work email address, email addresses would be related to the unit number, then owners could choose whether or not to even look at the emails without giving too much information to all and sundry. You can set up an email host for less than $20 per user per year, depending on how much mail you are likely to be using (not a lot, would be the norm). If people are that bothered about online security the cost of three coffees a year won’t kill them.
BTW, NSW strata law says that if you have an email address you must provide it to the strata roll. Sadly, it doesn’t say whether or not that can be excluded from the strata roll when other owners ask to see it. Concerns about privacy are legitimate, but so are issues with only one voice – usually the strata chair or secretary – having access to other owners in a scheme.