i tried to configure my outgoing SMTP using mailersend.com to send my emails on port 587
By default, SMTP mailing ports are restricted for most new customers, as detailed in the pinned post on our Community home page:
- I just created my first Linode and I can’t send emails. Why? (Mailing ports 25, 465, and 587 blocked by default)
To enable SMTP for your Linode(s) and start sending emails, kindly open a Support ticket specifying the Linode(s) that require SMTP approval.