I have configured Jenkins email notification. The test email is working fine from Manage Jenkins. However, it is failing in the job. Getting below error after enabling debug mode.

 
Sending mail from default account using custom from address jenkinstestacc@gmail.com
messageContentType = text/plain; charset=UTF-8
Adding recipients from project recipient list
Analyzing: NoReplyJenkins@gmail.com
Looking for: NoReplyJenkins@gmail.com
starting at: 0
firstFoundIdx: 0
firstFoundIdx-substring: NoReplyJenkins@gmail.com
=> found type: 0
Analyzing: NoReplyJenkins@gmail.com
Looking for: NoReplyJenkins@gmail.com
starting at: 0
firstFoundIdx: 0
firstFoundIdx-substring: NoReplyJenkins@gmail.com
=> found type: 0
Analyzing: NoReplyJenkins@gmail.com
Looking for: NoReplyJenkins@gmail.com
starting at: 0
firstFoundIdx: 0
firstFoundIdx-substring: NoReplyJenkins@gmail.com
=> found type: 0
Adding recipients from trigger recipient list
Successfully created MimeMessage
Sending email to: NoReplyJenkins@gmail.com
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: need username and password for authentication
DEBUG SMTP: protocolConnect returning false, host=smpt.gmail.com, user=jenkins, password=<null>
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smpt.gmail.com", port 465, isSSL false
MailConnectException message: Couldn't connect to host, port: smpt.gmail.com, 465; timeout 60000
Next UnknownHostException message: smpt.gmail.com[Pipeline] }[Pipeline] // stage[Pipeline] }[Pipeline] // node[Pipeline] End of PipelineFinished: SUCCESS