I repost my post .. using Zimbra for Free.fr mailbox .. I cannot use out of home .... I perfectly use with my smartphone , but with my Laptop impossible to get out of home .. I cannot send any messages.

the errors message got is : error message : 554 5.7.1 : Client host rejected: Access denied

I'm trying to use outlook/thunderbird same stories


I'm try to change the smtp config :
smtp port 25 - not authentification _ not working message don't start at all with some error window 804xxxxxx
smtp port 465 - SSL (as recommended by free.fr site support) _ not working error message 554 5.7.1 : Client host rejected: Access denied
smtp port 587 - SSL same story
smtp port 587 - MDA same story

ideas are welcome
thank you .