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Port 587 for Email Sending
Yes, port 587 is available and fully supported for outgoing email (SMTP) on all of our servers. Port 587 uses STARTTLS encryption and is the recommended alternative if port 465 is blocked by your ISP or network.
When to Use Port 587
Port 587 is the standard SMTP submission port and works in most network environments. If you are having trouble sending email using port 465, switching to port 587 with STARTTLS encryption often resolves the issue. Some corporate networks and ISPs block port 465 but allow 587.
SMTP Port Options
- Port 465: SMTP with implicit SSL (encrypted from the start)
- Port 587: SMTP with STARTTLS (starts unencrypted, then upgrades to encrypted)
- Port 26: Alternate SMTP port (use as a last resort if your ISP blocks both 465 and 587)
All three ports require authentication with your full email address and password.
