How do you send your emails?

If you use SMTP to send them, and you're new DigitalOcean user, it could be that port 25 and SMTP communications are blocked for you account. DigitalOcean does it to stop malicious accounts to send spam emails to other addresses.

You can check that with the Support team, by opening a ticket.

got same issue, but solved after: npm install -g nodemailer ... the worste issue now is how to maintain reputable the domain. after opening a ticker support suggest to create a snapshot, and make a new droplet from the snapshot, this works and one email were sent out, but with the second (this is not already clear to me) if the droplet reside in Europe / eg frankfurt, spamhaus insert the site in blacklist ... I can accept if I sent out many email in short time, but I need to invite 4 people as contributor to the blog ... anyway if I solve the issue I'll write here, any suggestion is welcome ...
Regards
Carlo

P.S:: sorry for bad English

Any update on this thread? I ran that and it didn't work.

same problem here