[Dovecot] Copies of outgoing emails in the Sent folder

[Dmitry Podkovyrkin]

Hi!

My mail server works in tandem: Dovecot (IMAP) + Postfix.
How can I configure in Gmail: Outgoing email copied to the Sent folder 
using postfix without mail client? This question is for the mailing list 
for Postfix?
Mail client itself copies outgoing messages in the folder Sent, but the 
messages are large, and the server is far away. And to transmit email 
twice for sending and copying is not effective.

Sorry for my English ).

-- 
Regards
Dmitry Podkovyrkin
mobile: +7 922 20 56 756
email: dmirty at rutelecom.company
skype: dmitryrw