Top 10 SMTP Test Tools to Detect Server Issues and to test Email Security

The SMTP test software is one sort of software which checks your SMTP server’s well being standing. First, it connects SMTP server then it sends an e mail. As everyone knows, for doing B2B enterprise, e mail is the third most important factor for conveying any data. The majority shouldn’t be a lot involved about mail, and many emails go to spam the shopper doesn’t verify.

Before you do the SMTP test, you is perhaps questioning what the SMTP is and its work? This is a Simple Mail Transfer Protocol. It has a set of command which authenticate and switch the content material instantly to the e-mail. It is especially linked with IMAP or POP3. The primary work is to ship an e mail the place IAMP and POP3 assist to obtain emails. You can say, SMTP is a protocol that enables sending e mail to individuals.

Sending an e mail is vital for each enterprise so we must always depend on SMTP server. SMTP test instruments solely may also help you to resolve SMTP server points and maintain your mail protected. Tool ship message to the SMTP server, and it solves your downside.

Tools shortly verify the problem and perceive the log particulars. It additionally checks whether or not it’s your login credential or any exterior risk. By utilizing this software, solely you can be realizing appropriately that whether or not emails are reaching the correct vacation spot or not. It supplies you the right outcome with much less price and time.

Modern SMTP comes with many alternative integration choices the place you may leverage these already used instruments. The Result varies relying on the instruments however a number of outcomes have to be widespread like IPv6 help, ICAP help, and SOCKS help. Here you can find out some greatest SMTP instruments which might be good to diagnose and keep safety correctly.

Top 10 SMTP Test Tools

  1. SocketLabs
  2. MxToolfield
  3. Wormly
  4. CheckTLS
  5. SSL-Tools
  6. ImmuniWeb
  7. DNSQueries
  8. NetScanTools
  9. SMTPDiag Tool
  10. Microsoft Analyzer
SMTP Test Tools


It is one of the greatest free SMTP test instruments used for monitoring, diagnostics, and so forth. This may be very straightforward and free to obtain, which additionally helps to troubleshoot SMTP connection.

  • It helps SSL and SMTP server connection, and it additionally accommodates few instructions like DATA, RCPT TO, EHLO, and way more.
  • Usually, the SMTP software may be very mild, and for obtain, this person should have Windows and NET 2.0 frameworks.



Through this, sending mail may be very straightforward since you simply want to enter your mail handle and click on on the following button. This test will get linked with mail servers which is able to work via SMTP, and it additionally has to carry out an Open Relay Test with the intention to confirm with a number of servers which embody DNS or PTR data.

Not solely this, however you too can calculate the response time related to the mail server. If you have no idea your mail server handle, you want to evaluation MX Lookup.



Users can start the SMTP test in Wormly; solely you want to enter the SMTP server IP or else your full area handle. You additionally want to enter your e mail handle in order that your software can confirm via the SMTP server.

There is an possibility for override the default TCP port which is able to instantly be linked to the SMTP server. You can ship an SMTP test mail to that e mail handle.

You may even deny that possibility if you’d like to do an SMTP handshake testing.



Through CheckTLS, you may verify the safety of e mail and know-how is it working? It has an EmailSentry outlook, which makes positive that you’ve got despatched emails, and that is fully non-public, protected, and authorized.

This is authorized by HIPAA, PCI, GDPR, CCPA, and different regulatory compliance. It principally for e mail safety.

If it detects any challenge after testing in your mail, then CheckTLS helps these to repair them.


You can verify your encryption via this server in a really simple way. A Pretty easy software the place you may simply enter the area half and test the safety.


It will even uncover the incoming mail server helps via STSRTTLS. It additionally has an SSL certificates.

If you need an ideal safety service, SSL-Tool is the perfect, and it would give good testing to their vulnerabilities to heartbleed.


This is a really efficient tool for testing SSL safety. This is definitely a free software that performs 73M safety.


This software gives several types of safety checks like e mail servers, internet servers, SSL certificates, checks for PCI DSS, HIPAA, and so forth.

As a person, you no want to do something a lot; simply want to enter the mail server handle or web site handle, and you can begin testing.


This is a very helpful software that verify the server well being and makes positive that it really works appropriately.

At first, this tries to join mail server and ship mail in order that reaching mail probabilities turns into extra. On the online web page, it shows the outcome.


This software may be very profitable and doing all the pieces very professionally, and you solely simply want to enter the hostname, and the test will get began.


It is designed in such a method you could simply ship emails via the SMTP mail server. It at all times provides you good entry to header parameters.


This helps SMTP authentication the place the person wants to put a password together with the person identify which the server wants. This software sends you the attachment via the mail. You can view these information and verify the communication between SMTP and NetScanTools Pro.

It additionally performs 15+ typical relay checks, which is able to work together with the SMTP server. You may view which one is greatest and that you really want to run that exact test report in your browser. This additionally provides the perfect communication between the NetScanTools Pro and the SMTP server.

SMTPDiag Tool

SMTP Test Tools
SMTPDiag Tool

Using this software, you can find and troubleshoot all of the server points relating to sending mail. Any downside will robotically show contained in the log window.

This window even shows the sending steps the place you’ll come to know in regards to the fail or go and error. You will likely be receiving the indication by way of message.

 This SMTP Test Tool may be very user-friendly, the place it turns into straightforward to verify the data and  IP handle appropriately and instantly.

Microsoft Analyzer

SMTP Test Tools
Microsoft Analyzer

It provides remote connectivity, which has to give outcomes by doing loads of checks. The test occurs by way of inbound and outbound SMTP e mail.

Inbound, it reveals completely different sort of checks that e mail server use to ship the area in SMTP e mail.

In outbound, SMTP use Ips to fulfill the necessities, which incorporates RBL checks, reverse DNS, and sender ID.

Final ideas

Sending an e mail is barely the primary connectivity together with your shopper. It is at all times higher to discover out the climate each e mail is reaching or not within the right vacation spot efficiently.

These SMTP Test Tools used to repair potential dangers, and it makes positive that e mail mustn’t attain the receiver’s spam field. This software additionally safeguards each e mail safety and will increase sturdiness.

Also Read

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