For Verse IOS need allow sent large attachment

When sent large attachment from HCL Verse for iOS, pop-up error message: Adding this attachment would cause the mail to exceed the maximum mail size.

(Simplified Chinese: 添加此附件会导致邮件超过最大邮件大小。 )

Since the limit is hard-coded in Verse iOS right now. the total size must not exceed 25MB else Verse iOS won't allow the user to attach the file anymore.

And refer below saying: In fact there is only allow sent approximately 17MB with the HCL Verse clients.

It is too small, so pls consider to increase the total size, for example not excced 50MB on Verse IOS, then in fact customer should can send about 30MB attachment, thanks!

https://help.hcltechsw.com/traveler/11.0.0/traveler_attachments.html?hl=attachment

Attachments are encoded as part of the RFC822 specification. Encoding the attachments may increase the size up to 33%. This means a 40MB attachment could be as big as 52MB when sent, surpassing a 50MB limit. In addition, the mail content itself is included in the POST, which increases the message size and limits the possible attachment size. The HCL Verse for Android, HCL Verse for iOS, and HCL Traveler for Microsoft Outlook clients enforce a 25MB limit. Allowing for the body and attachment size increase due to encoding, attachments are limited to approximately 17MB with the HCL Verse clients and 15MB with HTMO (Outlook restricts attachments to 20MB after encoding).