Calendars not syncing for selected mailboxes (ActivSync)

[mcrompton01]

Hi,

 

We are having a few problems with a couple of mailboxes we set up specifically for calendars, typically it's our headteacher mailbox. Basically the calendar will not sync anything. I've trawled through all the logs I can find and this is the only place I can find anything that suggests an error:

 

2013-09-17 12:35:28 INTERNALIPADDRESS POST /Microsoft-Server-ActiveSync/default.eas Cmd=Sync&User=USERNAMEFORCALENDAR&DeviceId=MYDEVICEID&DeviceType=MYDEVICEMODEL&Log=V141_Fc1_Fid:1_Ty:Ca_Filt6_St:S_Sk:1234670371_Sst28_Srv:5a0c0d0s0e0r0A0sd_BR1_BPR0_LdapC6_LdapL31_RpcC46_RpcL156_Cpo19687_Fet20000_Pk1956026081_S110_Error:StoragePermanentMapiExceptionMaxSubmissionExceeded_As:AllowedG_Mbx:FQDNOFSERVER_Throttle0_Budget:(D)Conn%3a2%2cHangingConn%3a0%2cAD%3a%24null%2f%24null%2f0%25%2cCAS%3a%24null%2f%24null%2f5%25%2cAB%3a%24null%2f%24null%2f0%25%2cRPC%3a%24null%2f%24null%2f4%25%2cFC%3a1000%2f0%2cPolicy%3aIncreased+ActiveSync+Devices+-+30+Devices%2cNorm%5bResources%3a(Mdb)MAILBOXDATABASENAME(Health%3a-1%25%2cHistLoad%3a0)%2c%5d_ 443 USERNAMEFORCALENDAR EXTERNALIPADDRESS MYDEVICEMODEL/100.40102 200 0 0 20031

 

Basically the error is "StoragePermanentMapiExceptionMaxSubmissionExceeded". I've done a quick search on google and couldn't find anything that looked relevant.

 

Does anyone have any ideas or seen this before?

 

Cheers in advance

 

Mark