It was I who released the smeserver-qpsmtpd update, should have also included the perl-Net-IMAP-Simple as well, although as the semserver-qpsmtpd update stood it would not have pulled the perl-Net-IMAP-Simple package, would have needed to be included in the overall updating flow..anyway, this is what I did to confirm what should be happening, as an aside these updates have been sitting in the updates-testing for some months, needed a properly configured test resource, so looking at below, mostly for your info..follow your own procedures for updating, ie wait until all have been released to updates
for anyone caught who has been caught..I did this to make sure..you may be less concerned and go your merry way

Shouldnt be necessary however I already had the perl-Net-IMAP-Simple installed, for purposes of example took it back to default
# yum downgrade smeserver-qpsmtpd perl-Net-IMAP-Simple
then
# yum update smeserver-qpsmtpd --enablerepo=smeupdates-testing
---snip---
Resolving Dependencies
--> Running transaction check
---> Package smeserver-qpsmtpd.noarch 0:2.7.0-11.el7.sme will be updated
---> Package smeserver-qpsmtpd.noarch 0:2.7.0-13.el7.sme will be an update
--> Processing Dependency: perl(Net::IMAP::Simple) >= 1.2212 for package: smeserver-qpsmtpd-2.7.0-13.el7.sme.noarch
--> Running transaction check
---> Package perl-Net-IMAP-Simple.noarch 0:1.1916-3.el7.sme will be updated
---> Package perl-Net-IMAP-Simple.noarch 0:1.2212-1.of.el7 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
===========================================================
Package Arch Version Repository Size
===========================================================
Updating:
smeserver-qpsmtpd noarch 2.7.0-13.el7.sme smeupdates-testing 150 k
Updating for dependencies:
perl-Net-IMAP-Simple noarch 1.2212-1.of.el7 smeupdates-testing 54 k
Transaction Summary
===========================================================
Upgrade 1 Package (+1 Dependent package)
Total download size: 204 k
Is this ok [y/d/N]: y
Downloading packages:
(1/2): perl-Net-IMAP-Simple-1.2212-1.of.el7.noarch.rpm | 54 kB 00:00:00
(2/2): smeserver-qpsmtpd-2.7.0-13.el7.sme.noarch.rpm | 150 kB 00:00:00
-------------
Total 224 kB/s | 204 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : perl-Net-IMAP-Simple-1.2212-1.of.el7.noarch 1/4
Updating : smeserver-qpsmtpd-2.7.0-13.el7.sme.noarch 2/4
Cleanup : smeserver-qpsmtpd-2.7.0-11.el7.sme.noarch 3/4
Cleanup : perl-Net-IMAP-Simple-1.1916-3.el7.sme.noarch 4/4
Initializing databases
---snip---
Executing signal-event temp ...........
Reload yum db for server-manager
Verifying : perl-Net-IMAP-Simple-1.2212-1.of.el7.noarch 1/4
Verifying : smeserver-qpsmtpd-2.7.0-13.el7.sme.noarch 2/4
Verifying : smeserver-qpsmtpd-2.7.0-11.el7.sme.noarch 3/4
Verifying : perl-Net-IMAP-Simple-1.1916-3.el7.sme.noarch 4/4
Updated:
smeserver-qpsmtpd.noarch 0:2.7.0-13.el7.sme
Dependency Updated:
perl-Net-IMAP-Simple.noarch 0:1.2212-1.of.el7
Complete!