Hi, When I want to export a large mailbox (about 375 MB) I get memory error. I set memory limit to 512M but nothing changed. I tried both mbox and zip. PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 393623420 bytes) in Unknown on line 0 horde 5.2.17 imp 6.2.21 Regards, Aras