Comments on: Migrating a catch-all maildir to Office 365 Because I like to share knowledge Tue, 03 Jan 2017 19:12:46 +0000 hourly 1 By: Jon Rixon Tue, 18 Sep 2012 13:55:38 +0000 There is another way you could achieve a catch-all, without too much difficulty. The only downside is that you have to remember what you've setup if you ever add any more Office365 users.

Check out this entry on our website:


By: Sam Wed, 12 Sep 2012 22:32:39 +0000 In reply to Sam.

PS - Your method is also correct, I only meant to provide additional information.

By: Sam Wed, 12 Sep 2012 22:29:54 +0000 Hi Michaël,

I think if you use smtp: instead of SMTP: for all of the addresses except for one, then the one specified with SMTP: will be taken as the primary address.

Not sure if this works with Office 365 as I haven't tested it, but that is the way it works with Exchange on-premise.