Virtual Machine: VirtualBox or VMWare

CPU = 4, Memory = 8GB

Ubuntu 16.04 LTS

Odoo v10 - no custom add-ons - only Odoo demo database

Odoo is working perfectly, except upon sending RFQ or PO by Email.

A dialog box is open, then ask me to wait for about 1-2 minutes, then only it appears.

Tested in both VMWare and VirtualBox - same result. With and without postfix = same results.

If I don't use VM, it works perfectly (fast).

Kindly help.

Thanks so much,

Interlight