Hi, 

My work email folder size is very huge like 30G. 

As I cannot use Identity to transfer my email to another MacBook Pro, I have to export the archive olm. 

It takes a very long time and seems not safe. 

I want to know if there is any size limit for the archive as I think my downloaded email folder will expand very fast. 

Also, if I can break the archived file into several files... it seems safer to me with smaller files. 

Thanks.