Dear SAP gurus,
I just wonder if we can enter any domain name in the Default domain (SCOT - Settings - Default Domain).
I knew that if a user does not have email address entered in SU01, when he sends email out from SAP, SAP would generate the e-mail address by concatinating his username and the default domain.
If username is sapuser and default domain entered in sapdomain.com, so the e-mail address would become email@example.com.
Now, if sapuser sends email out from SAP to external, say, firstname.lastname@example.org, yahoouser can receive the e-mail. However, yahoouser cannot reply sapuser's email.
Does this mean that we need public domain (internet domain) to get external user to reply back sapuser's e-mail?