The tools below are available online and can be used to troubleshoot and validate Exchange environments, mail-related configuration, and Microsoft 365 services.
| Tool | Description | By |
|---|---|---|
| Exchange Deployment Assistant | Online tool to provide insights into connectivity between your device and the internet and Microsoft’s network. | Microsoft |
| Hybrid Configuration Wizard | Online tool to configure Hybrid Exchange deployments. | Microsoft |
| Remote Connectivity Analyzer | Online tools to test e-mail and e-mail security, more specifically TLS encryption. | Microsoft |
| Network Connectivity Tool | Online tool to validate your Exchange, Skype for Business, or Office 365 configuration. | Microsoft |
| MXtoolbox | Multi-purpose validation tool for everything mail-related. | MxToolbox |
| M365Maps | Microsoft 365 Licensing diagrams | Aaron Dinnage |
| DMarcian | Online tool to provide insights into connectivity between your device, the internet, and Microsoft’s network. | Dmarcian |
| Graph Explorer | Online tool to explore the Graph API | Microsoft |
| CheckTLS | Online tool to validate DKIM, MTA-STS, DMARC, DNSSEC, DANE, TLS-RPT, and BIMI | SecurEmail |
| Mail Tester | Online tool validating the spamfactor validating your mail setup’s SPF, DKIM, and DMARC configuration. | Mail Tester |
| SSL Checker | Test your site SSL & cipher configuration. | SSLLabs |
| DMARC Tester | Online tool validating the spamfactor validating your mail setup’s SPF, DKIM, and DMARC configuration. | URI Ports |
EighTwOne (821) 