Definition: Simple Mail Transfer Protocol, or SMTP, is used to send email. The SMTP protocol provides a common language for different servers to send and receive email messages. The default TCP/IP port for the SMTP protocol is port 25.
Also Known As: Simple Mail Transfer Protocol
Editor-in-Chief at TechSpective
I have a passion for technology and gadgets and a desire to help others understand how technology can affect or improve their lives. I also love spending time with my wife, 7 kids, 3 dogs, 5 cats, a pot-bellied pig, and sulcata tortoise, and I like to think I enjoy reading and golf even though I never find time for either. You can contact me directly at tony@xpective.net. For more from me, you can follow me on Threads, Facebook, Instagram and LinkedIn.
Latest posts by Tony Bradley (see all)
- How a Hacker Helped Mariana van Zeller Find Her Romance Scammer - October 16, 2026
- The Technology Tax You Pay Every Time You Buy Something ‘Smart’ - October 14, 2026
- Settra Ransomware Is the Last Thing That Happens - October 11, 2026
