Hi Mktgajf,
As per my understanding, there are two ways to change the sender email globally:
1. We can set default sending domain in Settings > Marketing settings > Default marketing settings.(In the situation when you have multiple authenticated domains.)
https://docs.microsoft.com/en-us/dynamics365/marketing/mkt-settings-default-marketing
After that, when creating a new email, the From address will concatenate the user account name and the default authenticated domain.
(Please read the link for more details of setting sender and receiver options: https://docs.microsoft.com/en-us/dynamics365/marketing/email-properties#set-sender-and-receiver-options)
e.g: If my user account is admin@crm123.onmicrosoft.com and authenticated domain is clofly.com, then the From address field of newly created email will be:
admin@clofly.com
2. If you want to change From address dynamically based on journey, you could create a custom field to Content Settings entity to store default email address.
In your marketing emails, set From address to the dynamic value using Assist edit, for example: {{msdyncrm_contentsettings.new_sendingemail}}.
Then in new customer journey, apply corresponding content settings record to content settings field of the journey, the From address of marketing email will read value of the custom field.
(Make sure the value is a valid and authenticated email address.)
Regards,
Clofly
