In addition to editing your sender email address, you can now edit the Reply-to email address conveniently when setting up your email campaign, without having to edit it in the List settings section.
Your from email must be an email address that is easily recognizable and viewed as trustworthy by your recipients.
Your reply-to email (i.e. the email that your recipients can write back to by clicking on reply) should be recognizable and friendly, as opposed to a no-reply@firstname.lastname@example.org address. The purpose of having a friendly reply-to email is to encourage your recipients to contact you. Email is about communicating with your customers, not telling them "not to reply" to you. In addition, the reply action is counted by ISPs (e.g. Gmail, AOL, etc.) as a clear indication of your recipients' engagement, which means that it positively affects your deliverability.
Using a dynamic sender
Check the Select sender from recipient data fields to take advantage of Dynamic Sender, an advanced feature that allows you to assign which from email addresses will be sent to which recipient in your mailing.