getting rid of Mail data

[joao231]

Hi,
I'm trying to free up some space on my 5s (8.1.2) but can't seem to be able to get rid of mail data.
I've deleted all email accounts and rebooted but I still get 856 Mb of mail data cluttering my phone.
I also use Gmail app but that's listed below as a different app so I don't think it matters here.

Any ideas on how to get rid of that data?

 

[J. A.]

Welcome to iPhoneForums, joao231!

You'll have to restore your device using iTunes. That's the only option to get rid of some more storage space, as you've already removed the accounts.

This will also update your iPhone to the latest software version, iOS 8.3.

 

[joao231]

That's disappointing as I was hoping that there was some procedure or non-cydia app that would do job because I hate restoring my phone.

Anyway, thank you for the welcome and the reply J.A.

 

[J. A.]

I supposed your device is not jailbroken. Restoring will help getting rid of "Other" storage. On a non jailbroken iPhone, it's the only possibility that helps.
I can't tell you whether or not there's a Cydia tweak which helps removing the additional storage on your iPhone. Sorry!