I have a Statamic site that uses Postmark for email delivery. Sending mail works from my local build, but the same build can’t send mail on live. What could be different on my Digital Ocean server that is blocking mail from sending?
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Solved - it was a Redis queue that needed to be running.
Hi there,
If you’re using ports 25, 465, or 587, keep in mind that they are closed for external use on new accounts. The best way to work around this is to use an external SMTP provider.
To expand more on blocking these ports for new accounts, this is something DigitalOcean has implemented to reduce spam on its network, as it’s difficult to accurately determine who will be sending it.
Stopping spam is a constant fight, so DigitalOcean has implemented some restrictions on newer accounts. Having said that, you can always contact them and ask for the port block to be lifted on:
https://www.digitalocean.com/support/
More information here:
https://docs.digitalocean.com/support/why-is-smtp-blocked/
Dedicated email deliverability platforms are better at handling deliverability factors like IP reputation. To send mail from DigitalOcean, I could suggest using SendGrid or any other SMTP service provider:
https://marketplace.digitalocean.com/apps/sendgrid
Hope that helps!
Best,
Bobby