Currently you can only change the from address on a per group basis, using the "send replies as..." field. It would be useful if you could change this on a per reply basis. Maybe you could add a drop-down for the from field right in the reply box.
I'm not sure why this isn't a standard feature truthfully. It was in previous cerberus versions. And for large companies that have 30+ email address to work with, the ability to select a 'from' address per reply comes in very handy. Sometimes just sending a response from support@domain.com is fine, but in other instances, it would be better to possibly get one from manager@domain.com...without having to change the group...as the ticket would still technically be a support issue...
New Feature
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[Mail] Ability to change from address on a per reply basis