When Your VPS Blocks Outbound SMTP: What Actually Helps

1. 1Check if your VPS provider blocks outbound SMTP traffic on port 25
2. 2Configure your application to use a non-standard port for SMTP, such as port 587 or 465
3. 3Set up an external SMTP service, like Mailgun or Sendgrid, to relay emails from your VPS
4. 4Verify your domain's SPF and DKIM records to prevent email spoofing and improve deliverability
5. 5Test your email sending configuration using a tool like Telnet or a command-line email client

DevOps teams and system administrators can benefit from this knowledge to ensure smooth email functionality on their VPS instances, particularly when deploying applications that require email sending capabilities

💡 Using a non-standard SMTP port or an external SMTP service can help bypass VPS providers' blocking of outbound SMTP traffic

💡 Having trouble sending emails from your VPS? Try using a non-standard SMTP port or an external email service to bypass blocking!