The visible address is the one that the recipient will see in his inbox. Unfortunately, this one is by default very easily falsifiable, and for this reason the authentication protocols are necessary. This is the address whose domain is protected by DMARC.
We recommend using an email address dedicated to your campaigns for a better deliverability. For this, we suggested for example to use an email address based on a subdomain of your main domain.
This address is defined by the optional header "From:" (yes, optional, even if it is not recommended at all to omit it).
For example, considering that "mybrand.com" is the main domain:
From: <email@example.com> "MyBrand Newsletter"
The part in quotation marks is the Sender Name.
The way the name and address of the sender will be displayed depends on the reader used (webmail, mail client, mobile app...).
This address is configurable in each design:
We do not recommend using an address of the main domain (in the example, firstname.lastname@example.org) because then the domain could not be managed by Splio (including the receipt of reports or complaints, manual or automated).
In practice, the sending address is provided by the administrators of your organization.
Several names can refer to this address: : « From: address », « RFC5322.From » (cf. RFC 5322), « Visible From: », « Display From: » …
In the analogy of a paper mail, this address would be in the letterhead heading, which one would have taken out of its envelope.
The default sender address can be configured in the global settings of the Splio universe application. To do this, go to the "ADMIN" module in the top menu and then to "Global Settings", change the "Sender Email Address" parameter to define the address to use.