Huge IMAP/POP bandwidth

[sirwiz]

Hi, i just encounter since 2 days a strange bandwidth counting.

pop imap emails
2015 01 01 66.1 MB 69.2 KB 0 B 236 KB 56.5 KB 0 B 0 B 66.5 MB 13 (0)
2015 01 02 68.4 MB 106.3 MB 0 B 2.69 MB 1.24 MB 0 B 0 B 178.6 MB 42 (5)
2015 01 03 60.5 MB 12.1 MB 0 B 0 B 95.8 KB 0 B 0 B 72.6 MB 13 (0)
2015 01 04 55.5 MB 17.7 MB 0 B 365 KB 81.5 KB 0 B 0 B 73.7 MB 8 (2)
2015 01 05 105.4 MB 41.7 MB 0 B 6.01 GB 1.64 GB 0 B 0 B 7.80 GB 57 (4)
2015 01 06 81.9 MB 435 KB 0 B 5.97 GB 1.63 GB 0 B 0 B 7.68 GB 15 (0)
or
2015 01 01 1.99 GB 49.6 MB 0 B 12.2 MB 0 B 0 B 0 B 2.05 GB 323 (6)
2015 01 02 1.99 GB 106.0 MB 0 B 49.0 MB 18.6 MB 185 KB 0 B 2.16 GB 598 (19)
2015 01 03 2.26 GB 9.23 MB 0 B 2.84 MB 0 B 0 B 0 B 2.28 GB 376 (4)
2015 01 04 3.18 GB 20.2 MB 0 B 15.5 MB 0 B 0 B 0 B 3.22 GB 413 (7)
2015 01 05 2.16 GB 91.7 MB 0 B 23.89 GB 5.41 GB 0 B 0 B 31.56 GB 774 (22)
2015 01 06 2.33 GB 10.7 MB 0 B 4.14 GB 1.64 GB 80.5 KB 0 B 8.12 GB 467 (2)

We do not touch anything on this server on 4 or 5 january.

All accounts have this strange usage.

Any ideas?

DA+DA services are up to date.

 

[Terrorhawk]

Check outlook.

If u use outlook 2013 and some updates are installed then u can have this problem.
Its a known bug in outlook and its not fixed. its allready known for 2 years now.

some info:

http://ddkonline.blogspot.nl/2013/06/outlook-2013-bug-when-using-imap-beware.html