Hi,
We recently deployed a Confluence server.
We use SendGrid for email sending.
I have followed the official sendgird documentation and i succeeded sending an email through Telnet.
But in confuence, i always have the Bad username/password when testing sending an email.
The following is my configuration

The following message is received :
An error has occurred with sending the test email:
com.atlassian.mail.MailException: javax.mail.AuthenticationFailedException: 535 Authentication failed: Bad username / password
at com.atlassian.confluence.jmx.JmxSMTPMailServer.doSendWithMessageIdSupport(JmxSMTPMailServer.java:120)
at
Any help please ?