Email Signatures - Office 365 / Exchange 2013

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I've found some old threads on here, but nothing about the new versions of Exchange or Office 365.

So I've got a Mail Flow Rule setup to add in the legal disclaimer to outgoing mails. That all works fine, and correctly checks if the disclaimer text is already present.

I also saw that the Mail Flow Rule can get personalised information from active directory like %%FirstName%% %%LastName%% etc. https://technet.microsoft.com/en-GB/library/dn600437(v=exchg.150).aspx That could be useful to create signatures. But it's not.

When using the Mail Flow Rules:
  • The text either gets added to the very top or very bottom of the email thread. Adding the disclaimer to the very bottom of the thread is fine. But a signature should be added below this.message and before previous.messages, not at the very bottom of the thread.
  • The user can't see the text. That's fine for the legal disclaimer, but they want to see their own signature.
  • The user can't edit the text (no inventing fancy job titles!)
  • The message in sent items doesn't show the added text.

So yeah, the Mail Flow Rules seem fine for the disclaimer, but no good for a user signature.

What other options are there?

The other method I know is to use a script to create a HTML file in the users Signatures folder (either prompting the users to type in their details, or grabbing them off active directory with LDAP). Using the Signatures folder will be fine for users on the domain. But it won't get the signature to users who have their email accounts setup with Outlook on non-domain computers, home machines, etc. And it won't be synced onto OWA.

Has anyone figured out a way to do this?
 
You haven't missed a trick at all, this just isn't something that is easy to do server-side - everything I've seen amounts to an overpriced garbage client-side plugin.

I remain hopeful that Google or MS will realise there's demand for auto-generating signatures from directory information that doesn't involve images being attached to outgoing messages (aargh), and whoever didn't think of it first will copy it soon after. Until then I think we will continue charging reasonable rates for email migrations and account setups, and £500,000 for managing email signatures so at least it's worth our while if someone ever takes us up on the offer.

We can nail SPF, account moves, hybrid Office 365 migrations all day long, but as soon as we're asked to standardise signatures across the company, (or even worse, fonts) everything falls apart rapidly.
 
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