Hmmm..thats strange. The IP is not related to MailStore in any way. But it seems to be related to Microsoft:

% whois  208.68.139.89

OrgName:    FAST Search & Transfer Inc 
OrgID:      FST-20
Address:    117 Kendrick Street
City:       Needham
StateProv:  MA
PostalCode: 02494
Country:    US

NetRange:   208.68.136.0 - 208.68.143.255 
CIDR:       208.68.136.0/21 
OriginAS:   AS40066
NetName:    FAST-HOSTED-SERVICES
NetHandle:  NET-208-68-136-0-1
Parent:     NET-208-0-0-0-0
NetType:    Direct Assignment
NameServer: DNSBOSEXT.FASTSEARCH.NET
NameServer: DNSDENEXT.FASTSEARCH.NET
Comment:    
RegDate:    2006-06-28
Updated:    2008-04-11

RTechHandle: JHH10-ARIN
RTechName:   Hutchinson, James Henry
RTechPhone:  +1-781-433-8999
RTechEmail:  james.hutchinson@microsoft.com 

OrgTechHandle: JHH10-ARIN
OrgTechName:   Hutchinson, James Henry
OrgTechPhone:  +1-781-433-8999
OrgTechEmail:  james.hutchinson@microsoft.com

I'm having an issue with this IP as well.

Somewhere on my computer, something is trying to contact 208.68.139.89 desperately. I'm running blocking software that is keeping it from contacting out, but I can't find the source.

The damn thing is determined. It's scanning through ports trying to contact that IP at several different ports. It seems contained, but I want whatever is doing that dead. Without letting it establish a connection, I can't find it in the processes list, and with something that screams "keylogging spyware crap" as loud as this thing does, I'm not interested in letting it have it's way.

Last night, my Dell Webcam software (process name webcamdell2.exe) desperately wanted to connect to that IP address as well...