Hi! Does anyone have an idea why some of the newsletter links gives 403 error while other works. The environment is EPiServer 7 with Mail 7 running on IIS 7.5.

This link works:
http://www.korusnord.no/EPiServerMail/Public/GoMail.aspx?op=false&mid=55f4e08b-4a93-4b43-9165-58c3663ea1fb&rid=ed219e24-9a5e-4082-b16c-7c0844d613ec&url=http%3a%2f%2fwww.forebygging.no%2fNyheter%2fNordisk-folkehelsekonferanse-i-Trondheim-26-29-august%2f%3futm_source%3depiservermail%26utm_medium%3dnewsletter%26utm_campaign%3dNyhetsbrev%2baug%2b2014

This link gives 403 error:
http://www.korusnord.no/EPiServerMail/Public/GoMail.aspx?op=false&mid=55f4e08b-4a93-4b43-9165-58c3663ea1fb&rid=ed219e24-9a5e-4082-b16c-7c0844d613ec&url=http%3a%2f%2fwww.nordiskfolkehelsekonferanse.no%2f%3futm_source%3depiservermail%26utm_medium%3dnewsletter%26utm_campaign%3dNyhetsbrev%2baug%2b2014

These links differ from the &url parameter.

Regards, Eyvind Hanssen