Carlota,List-Unsubscribe: <mailto:<%@ include option='NmsEmail_DefaultErrorAddr' %>?subject=unsubscribe<%= escape(message.mimeMessageId) %>>Cpy and paste the code above under your SMTP tab.ThanksDavid

Salut Marjorie,Il faut que ton lien soit de la forme www.abc.com ou http://abc.comMerciDavid

Microsoft recently confirmed changes to how they support the list-unsubscribe header in their webmail interfaces, and now only accept the mailto URI. While Gmail will honor either the http or the mailto URI.Try this List-Unsubscribe: <mailto:<%@ include option='NmsEmail_DefaultErrorAddr' %>?subject=...

Carlota,Which ISPs are you using for your testing?If gmail, please check your email original to see if you have the list unsubscribe.Even if an email messages includes a list-unsubscribe header, Gmail's user interface will not display the "unsubscribe" link if Google believes the sender's reputation...

Hi Carlota,In your screenshot, it's missing "?" between crkUnsubscription and idThanksDavid