Getting error while sending email using Oauth configuration

[AshwiniSathe1]

Hi Community,

I was trying to send email using Oauth configuration from AEM cloud author instance. I have followed these docs for the setup in Azure and in AEM.

 https://aemconcepts.com/home/smtp-integration-with-aemaacs-over-oauth-2-0/ & https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/security/oauth2-...
I was able to send email using postman by Graph API but with AEM it is giving error

 *ERROR* [EventAdminThread #17] com.day.cq.mailer.oauth.impl.OAuthMailerServiceImpl error occurred while sending mail using oauth
javax.mail.MessagingException: 451 4.7.0 Temporary server error. Please try again later. PRX5 [BN9PR03CA0921.namprd03.prod.outlook.com 2024-05-20T12:50:45.241Z 08DC784CD9B28ACE]_

I have tried with different scopes as well but every time I am getting error.

https://graph.microsoft.com/SMTP.Send

https://graph.microsoft.com/Mail.Read

https://graph.microsoft.com/Mail.Send

https://graph.microsoft.com/User.Read

openid

offline_access

email

profile

https://outlook.office365.com/SMTP.Send

Has anyone tried this configs for sending email through Oauth?

[gkalyan]

@AshwiniSathe1 

The error "451 4.7.0 Temporary server error. So, it should be a temporary issue with the Microsoft Outlook SMTP server. This doesn't look like related to the AEM or Azure configurations.

But you can check the if the access token provided by Microsoft may have expired (or)

Ensure the AEM proxy host and port are configured correctly to route through the AEM proxy to the Outlook SMTP server. The logs may indicate if AEM is attempting to connect directly instead of through the proxy.

[AshwiniSathe1]

@gkalyanI have added the egress port for proxy forwards in AEM. Also I checked the access token is valid I am able to send an email using this access token from Postman Graph API. 

I even checked the SMTP settings in mailbox 

[h_kataria]

Have you enabled the advanced networking as mentioned here 
https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/dev... 
Once that is done, you will have to update your Day CQ mail service as well, right now as per your screenshot, it is not looking correct. Following link should help in configuring that
https://experienceleague.adobe.com/en/docs/experience-manager-learn/cloud-service/networking/example... 
Once both these steps are done, then only you will be able to use Day CQ Mail service to send emails.

[kautuk_sahni]

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[alisonsa]

I looked at the screenshot of your osgi config for com.day.cq.mailer.DefaultMailService and you are connecting directly to smtp.office365.com. You should set the hostname to $[env:AEM_PROXY_HOST;default=proxy.tunnel] as per the documentation. And the port should be your port forward port, which is whatever is set in your advanced networking configuration for this environment (probably something like 30001, but you will have to check your advanced networking configuration to verify).