JIRA Incoming mail error

[SURYAKANT P]

Hi,

Recently we have migrated the Jira code from one server to another.

Everything is working fine. But In the Incoming email Settings the emails are not getting Triggered. Getting the below error

2022-10-31 02:45:00,203 WARN [jira] Caesium-1-1 anonymous JIRA pop server JIRA pop server[10070]: javax.mail.MessagingException: Connect failed while connecting to host 'XXX' as user 'XXXX XXX' via protocol 'pop3s, caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

2022-10-31 02:45:08,972 ERROR [] Caesium-1-1 ServiceRunner Messaging Error when MailPullerWorker pulls emails from XXX@X.COM: Connect failed

I had already checked all the necessry PoP server certificates. It is available in Trustore

Can anyone please help?