Do emails sent by a client via SMTP end up in Sent to GMail server?

Question

gmail

In my past experience:
Inboxes can stay on the server and be duplicated in the Mail client when received via POP3.
Sent letters from the client via SMTP remain only on the client.
Messages sent via the web interface remain only on the server and are visible only via the web interface.
There is a POP3-SMTP mail client (Rarus-CRM). (Not IMAP!!!) Connected to user mailboxes on GMail.
And it turned out that letters sent from the client are visible through the web interface in sent messages when the browser connects to GMail. Is this some kind of glitch, or a new feature of GMail?

Answer 1

Emails sent via SMTP Gmail are included in Sent. It's easy to check with a simple python script.

import smtplib

fromaddr = 'FROM'
toaddr = 'TO'
subj = 'Test email'
msg_txt = bytes('body','utf-8')
msg = "From: %s\nTo: %s\nSubject: %s\n\n%s" % (fromaddr, toaddr, subj, msg_txt)

username = 'username'
password = 'password'
server = smtplib.SMTP('smtp.gmail.com:587')
server.starttls()
server.login(username, password)
server.sendmail(fromaddr, toaddr, msg)
server.quit()