Hi Shadab,

I hope you are doing well :)

I understand that you are facing issues with outgoing emails. Please make sure you have reauthorized your mailbox, steps for which can be found here https://support.freshdesk.com/en/support/solutions/articles/50000002985-reauthorization-of-custom-mailbox and also check if have both selected in mailbox settings. An illustration can be found below,

Feel free to respond to this thread for any queries :)

Thank you