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Venkata Sandeep Kumar Pamidamarri (SandeepPamidamarri)
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Pega Architect
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SandeepPamidamarri Member since 2020 6 posts
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Posted: February 15, 2021
Last activity: 1 week 5 days ago
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Pega 8.1 - SMTP send failure STARTTLS - Office365 Outlook

Dear Team,

In the Pega cloud environment, I am trying to connect to Office365 outlook with basic authentication with below config details.

host: smtp.office365.com

port: 587 

Test connectivity is successful. But, getting the below exception as part of the outbound email. 

Error

[MSG][Unexpected exception caught while trying to send an email message.][STACK][com.sun.mail.smtp.SMTPSendFailedException: 451 5.7.3 STARTTLS is required to send mail [SJ0PR05CA0172.namprd05.prod.outlook.com] at 

Attached the complete error log. 

I tried with port 25 as well. Test connectivity is successful, still the same error. 

Ref Link: https://community.pega.com/sites/default/files/help_v81/procomhelpmain.htm#data-/data-emailaccount/emailaccount.htm#Email_Account_form___Completing_the_Email_Account_tab

Please shed some light, if any specific step needs to be requested with the Pega Cloud team in order to connect to office365 outlook.  

Thanks

Sandeep P V

***Edited by Moderator: Pooja Gadige to add platform capability tag***
Pega Platform 8.1.9 Case Management Data Integration Education Lead System Architect