dovecot - Jan 2019 - Having temp mdbox files, what to do with them?

Can I delete these because doveadm is only purging from source, when it 
is confirmed they are correctly at the destination?


[@ storage]# ls -ac1rt
m.554
m.569
m.564
m.559
m.561
.temp.1548002572.P1969Q0M313023.mail03
.temp.1548002572.P1969Q1M313023.mail03
.temp.1548002572.P1969Q2M313023.mail03
.
.temp.1548002572.P1969Q3M313023.mail03

I assume yes because the X-Universally-Unique-Identifier, I can all find 
in the original mailbox.

 >Can I delete these because doveadm is only purging from source, when 
it 
 >is confirmed they are correctly at the destination?
 >
 >
 >[@ storage]# ls -ac1rt
 >m.554
 >m.569
 >m.564
 >m.559
 >m.561
 >.temp.1548002572.P1969Q0M313023.mail03
 >.temp.1548002572.P1969Q1M313023.mail03
 >.temp.1548002572.P1969Q2M313023.mail03
 >.
 >.temp.1548002572.P1969Q3M313023.mail03
 >
 >