Could not send emails

Question

After updating to 18.1 on our on-premise installation email alerts have stopped, i can see the alerts under system alerts but those alerts are not being delivered this is also impacting new users not getting email notification. I have checked custom.properties and password.properties for any changes but all settings are as they were before. Under mail-listener i see this "[ServerService Thread Pool -- 65] INFO com.appiancorp.ra.emailpoller.EmailPollerRa - Email listener not configured (mailServer); will not be activated."

When i looked into unattended-request-poller i found the below error message,

Caused by: javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
   com.sun.mail.smtp.SMTPAddressFailedException: 554 5.7.1 <user@abc.com>: Sender address rejected: Access denied

   at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1873)
   at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1120)
   at com.appiancorp.ap2.mail.Mail.sendMessage(Mail.java:329)
   at com.appiancorp.ap2.mail.Mail.sendMessage(Mail.java:133)
   at com.appiancorp.ap2.mail.Mail.sendMailWithAttachment(Mail.java:200)
   at com.appiancorp.ap2.mail.Mail.sendMail(Mail.java:162)
   at com.appiancorp.process.engine.AbstractMailRequest.sendEmail(AbstractMailRequest.java:272)
   ... 66 more
Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 554 5.7.1 <user@abc.com>: Sender address rejected: Access denied

The credentials are correct i tested by logging in the mailbox and sending test email.

Benhail · Accepted Answer

In custom.properties files, make sure the following details are entered. Various Email Server Provider have different authentication method so kindly be specific to your email server settings.

This is for reference:
conf.mailhandler.ntf_sndr_addr=admin@XXXX.com
conf.mailhandler.email.domain=XXXX.com
conf.mailhandler.mail.smtp.host=smtpout.XXXX:<PORTNUMBER>
conf.mailhandler.mail.smtp.auth=true
conf.mailhandler.mail.user=admin@XXXX.com
conf.mailhandler.mail.transport.protocol=smtp
conf.mailhandler.mail.smtp.starttls.enable=false
conf.mailhandler.mail.smtp.starttls.required=false

And also in password.properties file:
conf.password.SMTP=XXXXXX

This should probably work.

I had to play around with these two in order to get the mails working.

conf.mailhandler.mail.smtp.starttls.enable=false
conf.mailhandler.mail.smtp.starttls.required=false

Change them according to your mail server settings