Problem with 'applepushserviced' in proxy environment

I have a MacBook Pro from 2011 with OSX 10.7 Lion. When I am in a proxy environment, 'applepushserviced' is connecting many times, up to >20,000 times per hour. An example of the output:

13:05:59.674948 IP 131.224.172.86.51338 > st11p01st-courier087-bz.push.apple.com.5223: Flags [S], seq 3304312261, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269596956 ecr 0,sackOK,eol], length 0

13:05:59.876244 IP 131.224.172.86.51339 > st11p01st-hpaj262303-bz.push.apple.com.5223: Flags [S], seq 2432730867, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597157 ecr 0,sackOK,eol], length 0

13:05:59.976530 IP 131.224.172.86.51333 > st11p01st-courier046-bz.push.apple.com.5223: Flags [S], seq 3740887653, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597256 ecr 0,sackOK,eol], length 0

13:06:00.177317 IP 131.224.172.86.51340 > st11p01st-hpaj252321-bz.push.apple.com.5223: Flags [S], seq 1599633053, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597456 ecr 0,sackOK,eol], length 0

13:06:00.177506 IP 131.224.172.86.51335 > st11p01st-courier104-bz.push.apple.com.5223: Flags [S], seq 651550873, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597456 ecr 0,sackOK,eol], length 0

13:06:00.378045 IP 131.224.172.86.51341 > st11p01st-hpaj262337-bz.push.apple.com.5223: Flags [S], seq 630955767, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597656 ecr 0,sackOK,eol], length 0

13:06:00.378216 IP 131.224.172.86.51336 > st11p01st-courier155-bz.push.apple.com.5223: Flags [S], seq 423444818, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597656 ecr 0,sackOK,eol], length 0

13:06:00.578722 IP 131.224.172.86.51337 > st11p01st-hpaj262301-bz.push.apple.com.5223: Flags [S], seq 3914163987, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269597855 ecr 0,sackOK,eol], length 0

13:06:00.779291 IP 131.224.172.86.51338 > st11p01st-courier087-bz.push.apple.com.5223: Flags [S], seq 3304312261, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269598055 ecr 0,sackOK,eol], length 0

13:06:00.980591 IP 131.224.172.86.51339 > st11p01st-hpaj262303-bz.push.apple.com.5223: Flags [S], seq 2432730867, win 65535, options [mss 1460,nop,wscale 3,nop,nop,TS val 269598255 ecr 0,sackOK,eol], length 0

13:06:

However, I really don't know how to stop this and how it is caused. If I am just on the regular non-proxy WIFI there are no problems.

Also, I can just use my browsers etc. in the proxy-environment.

I have already logged-off from iCloud.

Does anyone know a solution?

Thanks.