IT Links

Office 365 and Azure Links
Office 365 Portal
Azure Portal
Office 365 Outlook
Microsoft Remote Connectivity Analyser
Azure Speed Test

Exchange Server
Exchange server update rollup build numbers
Exchange Online Hybrid Wizard
Free Hybrid Key

Speed Tests
Pingdom Test Web Site Speed

Remote Access Software
AnyDesk
Remote Utilities

Network Stuff

Port Forwarding Tester
Subnet Calculator
Advanced IP Scanner
Advanced Port Scanner
PortQry Command Line Port Scanner
SSL Server Test
Office 365 Anti-Spam IP Delist Portal
DNS Stuff-All Tools
Reverse IP Lookup
THIRD-PARTY DNS VALIDATION TOOLS
DNS Propagation Checker
G Suite Toolbox
Google Message Header Analyser
Fiddler
All GPO Settings
Namecheap SSL Certificates
Bandwidth conversion calculator
Putty.exe
WinSCP
File Transfer Time – Data Transfer Speed Calculator

Email Messaging
SMTP Server Test
SMTP Test
SMTP Mail Sender → 1.0.0.26
Download SMTP Diag Tool version 1.0.0 (Apr 2012)
Telnet to test SMTP communication on Exchange servers

SPF Generator
DMARCIAN
DMARC Record Assistant

Office 365 Anti-Spam IP Delist Portal

Message Validation
Send a message to the following email address where it will be evaluated according to several authentication systems.
check-auth@verifier.port25.com (DK, DKIM, Sender-ID, SPF)

PC TOOLS

Patch My PC Home Updater Download
Image Resizer for Windows
Hand Brake
CCleaner