Thank you for the reply.We have already enabled the "Debug email" checkbox, but doesn't see in the error.log.I have read somewhere that the output is logged into stdout.log. But the AEM instance is running as a service, not sure where these messages will be logged into.

Hi,We are using AEM 6.2 and we have an issue on communities.We have a community group where the users post the messages by clicking on email subscriptions, notifications while posting new messages.We find that none of the users subscribed to this community group doesn't receive any email notificatio...