Is port 587 available for email sending?

Updated 2026

This article has been consolidated into our POP3 vs IMAP - Choosing the Right Email Protocol guide for easier reference.

  • 111 Users Found This Useful

Was this answer helpful?

Related Articles

Domain has exceeded the max defers and failures per hour

Email and Webmail | Updated 2026 If you see the error "Domain has exceeded the max defers and...

Webmail Access Denied

Email & Webmail | Updated March 2026 Getting "access denied" or a blank page when trying...

Can I get webmail running on port 80?

Email & Webmail | Updated 2026 Webmail on Ultra Web Hosting runs on port 2096 (HTTPS) by...

How do I make Outlook leave a copy of my messages on the server?

Email & Webmail | Updated March 2026 If you use POP3 in Outlook, messages are downloaded...

550-not permitted to relay through this server

Email & Webmail | Updated 2026 The "550 not permitted to relay" error means the mail...



Save 30% on web hosting - Use coupon code Hosting30