Katalon 7 cannot send emails via SMTP

Just purchased Katalon 7 Enterprise licensing. All tests fail to send emails now using Exchange SMTP in Azure DevOps and “Send test email” in Project Settings. Confirmed with team that Katalon v6 still works.

Steps to reproduce:

  • Check out project with SMTP settings saved, tested as working in v6
  • Fail to send test email in v7

Please let us know how would your work be affected if this issue has not been resolved?

I cannot continue my job and have to work on something else while awaiting your response

Operating System

  • For example: Windows 10

Katalon Studio Version

v7.6.6

Katalon Studio logs

ENTRY org.eclipse.e4.ui.workbench 4 0 2020-09-09 08:05:27.679
!MESSAGE
!STACK 0
org.apache.commons.mail.EmailException: Sending the email to the following server failed : our-smtp-host:443
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1421)
at org.apache.commons.mail.Email.send(Email.java:1448)
at com.kms.katalon.execution.util.MailUtil.sendTestMail(MailUtil.java:81)
at com.kms.katalon.composer.execution.settings.MailSettingsPage$16.run(MailSettingsPage.java:554)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)
Caused by: javax.mail.MessagingException: Exception reading response;
nested exception is:
java.net.SocketException: Connection reset
at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1462)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1260)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
at javax.mail.Service.connect(Service.java:297)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411)
… 4 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:210)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:97)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:75)
at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:1440)
… 12 more

Hi @clif.molina

Can you share us your Email Settings, screenshots when pressing Send test email in both v7.6.6 and v6.x in private chat