SMTP Diagnostics 1.8.0.74 was available as a free download on our software library. Our built-in antivirus checked this download and rated it as virus free. The actual developer of the program is White Peak Software Inc.
This PC program is developed for Windows XP/Vista/7/8/10/11 environment, 32-bit version. The most popular version of the SMTP Diagnostics is 1.8. The software belongs to Communication Tools. The SMTP Diagnostics installer is commonly called sdcmd.exe or SMTPDiag.exe etc.
From the developer:
SMTP Diagnostics is a program that assists with troubleshooting problems that can occur with outgoing mail (SMTP). You can send a test message, with or without attachment(s), and view the protocol messages exchanged between your computer and the mail server. This information can help you analyze problems or can be passed on to technical support personnel.
You may want to check out more software, such as QK SMTP Server, Free SMTP Server or Local SMTP Server Pro, which might be related to SMTP Diagnostics.