SMTP Diag Tool Alternatives

SMTP Diag Tool is described as 'Is used to identify and troubleshoot SMTP server problems by trying to send a message to an SMTP server while displaying all diagnostic information in realtime in a log window' and is an app in the network & admin category. There are more than 10 alternatives to SMTP Diag Tool for a variety of platforms, including Web-based, SaaS, Mac, Windows and Linux apps. The best SMTP Diag Tool alternative is Pingdom. It's not free, so if you're looking for a free alternative, you could try MxToolBox or Upzilla. Other great apps like SMTP Diag Tool are Website Monitoring by Uptime.com, intoDNS, Curler by Amixr.IO and Pingbreak.

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SMTP Diag Tool alternatives are mainly Uptime Monitor Services but may also be Network Monitors. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of SMTP Diag Tool.

SMTP Diag Tool

Free • Proprietary

SMTP Diag Tool is used to identify and troubleshoot SMTP server problems by trying to send a message to an SMTP server while displaying all diagnostic information in realtime in a log window.

More about SMTP Diag Tool

SMTP Diag Tool alternatives page was last updated Sep 9, 2022

Pingdom
Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.
229 Pingdom alternatives
License model
- Paid • Proprietary
Application type
- Uptime Monitor Service
Platforms
- Online
Pingdom Features
Website Monitoring
Performance Monitoring
Transactional Monitoring
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+1
Pingdom VS SMTP Diag Tool
Is Pingdom a good alternative to SMTP Diag Tool?
- Pingdom is the most popular Web-based alternative to SMTP Diag Tool.
- Pingdom is the most popular commercial alternative to SMTP Diag Tool.
- Pingdom is Paid and ProprietarySMTP Diag Tool is Free and Proprietary

Website Monitoring by Uptime.com
Uptime.com: Real-time availability monitoring & response for preventing website downtime. Your complete website monitoring solution.
145 Website Monitoring by Uptime.com alternatives
License model
- Paid • Proprietary
Application types
- Uptime Monitor Service
- Network Monitor
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Zapier
- Google Chrome
- Software as a Service (SaaS)
- Terraform
- GitHub
- Firefox
+5
Top Website Monitoring by Uptime.com Features
1. Status Page
2. REST API
3. Ad-free
4. Performance Monitoring
5. Downtime Detection
6. Uptime Monitoring
7. Website Monitoring
8. SLA Monitoring
9. Real User Monitoring
10. Two-factor Authentication
11. Lightweight
12. Dark Mode
Show all NaN Website Monitoring by Uptime.com features ▾
Website Monitoring by Uptime.com VS SMTP Diag Tool
Is this a good alternative to SMTP Diag Tool?
- Website Monitoring by Uptime.com is the most popular Windows, Android, Mac, iPhone, Linux, iPad, Android Tablet & SaaS alternative to SMTP Diag Tool.
- Website Monitoring by Uptime.com is Paid and ProprietarySMTP Diag Tool is Free and Proprietary
- Website Monitoring by Uptime.com is LightweightSMTP Diag Tool is not according to our users

MxToolBox
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.
36 MxToolBox alternatives
License model
- Freemium • Proprietary
Application types
- Uptime Monitor Service
- Network Monitor
Platforms
- Online
MxToolBox Features
1. Website Monitoring
2. Network Tools
3. Server Monitoring
4. Blacklist monitoring
5. Email monitoring
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MxToolBox VS SMTP Diag Tool
Is MxToolBox a good alternative to SMTP Diag Tool?
- MxToolBox is the most popular free alternative to SMTP Diag Tool.
- MxToolBox is Freemium and ProprietarySMTP Diag Tool is Free and Proprietary

Upzilla
Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.
194 Upzilla alternatives
License model
- Freemium • Proprietary
Application type
- Uptime Monitor Service
Platforms
- Software as a Service (SaaS)
Upzilla Features
Content monitoring
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+1
Upzilla VS SMTP Diag Tool
Is Upzilla a good alternative to SMTP Diag Tool?

intoDNS
intoDNS checks the health and configuration of DNS and mail servers.
31 intoDNS alternatives
License model
- Free • Proprietary
Platforms
- Online
intoDNS Features
Custom Nameservers
Dns
DNS Server
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intoDNS VS SMTP Diag Tool
Is intoDNS a good alternative to SMTP Diag Tool?

Curler by Amixr.IO
Dead Simple Uptime Monitoring.
166 Curler by Amixr.IO alternatives
License model
- Free • Proprietary
Application types
- Uptime Monitor Service
- Network Monitor
Platforms
- Online
Curler by Amixr.IO Features
1. Website Monitoring
2. Web-Based
3. Cloud Monitoring
4. Server Monitoring
5. Performance Monitoring
Show all NaN Curler by Amixr.IO features ▾
Discontinued
https://amixr.io/Company sold to Grafana and product shelved.
Curler by Amixr.IO VS SMTP Diag Tool
Is Curler by Amixr.IO a good alternative to SMTP Diag Tool?

Pingbreak
Pingbreak is an original and free monitoring service. Get notified through Twitter if your website is down. Pingbreak checks all of your websites each minute and alert you instantly by Direct Message (DM)
150 Pingbreak alternatives
License model
- Free • Proprietary
Application types
- Uptime Monitor Service
- Network Monitor
Platforms
- Online
- Discord
- Mattermost
- Slack
- Twitter
Pingbreak Features
1. Website Monitoring
2. Timezone customization
3. Email Notifications
4. Redirection errors detection
5. Real-time monitoring
6. Fullscreen mode for TV
7. Slack integration
8. Bearer authentification
Show all NaN Pingbreak features ▾
Pingbreak VS SMTP Diag Tool
Is Pingbreak a good alternative to SMTP Diag Tool?

Netthrob
Netthrob runs automated verification checks on your website every three minutes from five different geographies and immediately informs you through Phone, SMS & Email when your site goes down.
145 Netthrob alternatives
License model
- Paid • Proprietary
Application type
- Uptime Monitor Service
Platforms
- Online
- Self-Hosted
Netthrob Features
Website Monitoring
Show all NaN Netthrob features ▾
Netthrob VS SMTP Diag Tool
Is Netthrob a good alternative to SMTP Diag Tool?
- Netthrob is the most popular Self-Hosted alternative to SMTP Diag Tool.
- Netthrob is Paid and ProprietarySMTP Diag Tool is Free and Proprietary

Silent Down
Silent Down is a website uptime and performance monitoring platform, to keep an eye on your application and instantly alert you if any issues arrive.
183 Silent Down alternatives
License model
- Paid • Proprietary
Application types
- Uptime Monitor Service
- Network Monitor
Platforms
- Online
- Software as a Service (SaaS)
+2
Silent Down Features
1. Website Monitoring
2. Performance Monitoring
3. Cloud Monitoring
4. Status Page
5. Application Monitoring
6. Server Monitoring
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Silent Down VS SMTP Diag Tool
Is Silent Down a good alternative to SMTP Diag Tool?

Dnsstuff
DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering. Explore monitoring products and free DNS tools at DNSstuff.
30 Dnsstuff alternatives
License model
- Freemium • Proprietary
Application type
- Network Monitor
Platforms
- Online
Dnsstuff VS SMTP Diag Tool
Is Dnsstuff a good alternative to SMTP Diag Tool?

Lean20 Ping
Unlimited monitors checked from multiple location every minute. Monitor any port or setup a "heartbeat" that works well for cron jobs or any service behind a firewall. Be alerted as soon as your service is offline via email or app integration.
188 Lean20 Ping alternatives
License model
- Paid • Proprietary
Application type
- Uptime Monitor Service
Platforms
- Software as a Service (SaaS)
Lean20 Ping Features
Website Monitoring
Downtime Detection
Show all NaN Lean20 Ping features ▾
Lean20 Ping VS SMTP Diag Tool
Is Lean20 Ping a good alternative to SMTP Diag Tool?

Status List
Standard uptime monitoring with alerts that include diagnostic information, timing breakdowns and dashboard snapshots. Configure alerts for HTTP statuses, reachability and performance thresholds.
179 Status List alternatives
License model
- Paid • Proprietary
Application type
- Uptime Monitor Service
Platforms
- Software as a Service (SaaS)
Status List Features
Website Monitoring
Performance Monitoring
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Status List VS SMTP Diag Tool
Is Status List a good alternative to SMTP Diag Tool?