I guess when you access GAL via Outlook. the session had been connected when you launch Outlook app.
However, when you send to mail recipient via Word, the process would be a bit more complex which included using Simple MAPI, establish session, access GAL and etc. If your Outlook is not running under background or disconnect to Exchange server, this behavior
would be as expected.
In addition, this behavior also might be caused by AVG/firewall, please turn off it for further testing. Thanks.
Tony Chen
TechNet Community Support
