Thanks Richard, unfortunately, we’re going to exceed the 500k Pageviews /month limit in the professional package, and we need Custom Plugins, so the lowest one that suits you is Business – being a non-for-profit, we cannot afford that.
Btw, do you get into an IP blacklists management nightmare because of the complimentary email sending you provide?
Can you please PM me with more details about your community and your requirements?
Once Discourse starts sending email, the forum has a pretty good opt-in. We only had two issues - ever.
The first issue was about a customer sending large amount of bulk invites to people that did not realize they opted in for this. (They actually did).
The second issue was when a forum that was converted from a mailing list started sending weekly digests to michelle @sorbs.net - of all people.
I ended up installing my own Mail-in-a-Box email in a $5/mo DigitalOcean droplet, and now can send infinite number of emails provided I comply with all regulations, SPAM-CAN etc. I’m not dependent on those mail services anymore, yahoo! And my spendings are limited to $5/mo. I can also add unlimited domains to my Mail-in-a-box instance.
更新：Mail-in-a-Box 仍很好地为我服务，支持多个 Discourse 实例以及 WordPress 的事务性邮件。
我想补充的更新是，我还为两家非营利组织管理着两个 Discourse 实例。对于这些实例，我通过 Azure 非营利组织信用额度使用 SendGrid，费用为每年 3500 美元，实际上相当于免费——比 Mail-in-a-Box 更可靠，甚至更便宜。
对于另一个组织，我使用 Discourse 进行项目管理。在这种情况下，选择 Mail-in-a-Box 是一个稳妥的方案，因为您不会遇到任何广告或偶尔的垃圾邮件。因此：