error 535 when confluence send email

I am using an installation of confluence for a couple of months.

At the initial configuration I followed this guide to set up the email notification service

The email notification service has always worked well.

A few days ago, however, I have a problem that I can not understand.

Confluence not send any more emails.

The configuration has not been changed. But when I do the test of sending an email, from the admin page of confluence, I get an exception that refers to an error 535.

I searched on internet for information, I found many pages but none of that explains how to solve (such as these two)'javax.mail.AuthenticationFailedException'+Error+Message

I therefore wonder if anyone has had this problem and knows how to solve, or where I can find the xml file of the email configuration (if it exist).

thanks in advance

4 answers

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Accepted answer

I solved so brutal, but substantial: I reconfigured the installation of Confluence, I thank everyone for giving me help.

Hi Calogero,

Which SMTP server are you using to send out your emails from Confluence?

It looks like the account you are using has a wrong password or does no longer have the rights to send email.

Best regards,


0 votes
Joe Wai Tye Atlassian Team May 26, 2014

Hey there Calogero,

I see that you've already found the KB articles that I wanted to show you.

With that said, could you clarify with us if you have double-checked on the following :

* Are the username and password configured for the SMTP Server in Confluence correct?

* Is there any anti-virus software running in the same machine hosting Confluence?


no, no antivirus

you're right I forgot to explain well that I use the correct SMTP server and the correct credentials in fact the same as they are operated on production JIRA server without any problem and also by a small python script I took the test and everything works fine. According to me there is something in some jar package of confluence that is broken after the last update that I made from the admin panel.

I'm using the mail-1.4.5.jar at moment in the ../lib/ directory

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