When I set up the Ghost instance currently under the hood of Disintermedia.net.nz, I learned that if you want to email a newsletter to a list of subscribers who've asked you for it, you can't just send it from any old SMTP mailserver. To avoid being flagged as a spammer, blocking all your email delivery, you have to pay 1 of a handful of bulk delivery companies like MailGun or SendGrid to deliver email newsletters to subscribers for you.
WTF?!?
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@yala
> You can also configure your mailserver in a way that you do not become a spammer
I'm not sure exactly what you mean, but you've clearly missed the point. @lightweight assures me that if you are not a member of the cartel of approved bulk mail senders, and your mailserver send bulk mail, it will automatically be classified as a spam source by all the major corporate email hosts. Who between them host or otherwise intermediate the vast majority of email accounts.
Strypey
jon r