Email index (inbox, drafts, sent etc) taking most of page so unable to open emails, how can I make it smaller?

[AC Question]

Email index (inbox, drafts, sent etc) taking most of page so unable to open emails

If email visible, when go to open or delete, the margin of index slides across causing the messages to drop off screen.

 

[Golfdriver97]

Re: Email index (inbox, drafts, sent etc) taking most of page so unable to open emails

Welcome to the forums. What email app are you using?