Complex sentence: This was the maximum available RAM in many Mac systems of the era, and while newer machines were able to run AOCE more comfortably, as an e-mail system intended to be run on diverse networks the requirements greatly impaired market share.
Split into simpler sentences: This was the maximum available RAM in many Mac systems of the era. While newer machines were able to run AOCE more comfortably, as an e-mail system intended to be run on diverse networks the requirements greatly impaired market share.