[License-discuss] Is the OBM License OSD compatible?

Gervase Markham gerv at mozilla.org
Fri Jan 6 10:06:58 UTC 2017

On 06/01/17 03:48, Marc Laporte wrote:
> The OBM license is AGPL 3 + "Additional Terms":
> http://obm.org/content/obm-license

That page says:

"OBM is an Free and Open Source messaging and collaboration software,
distributed under the GNU Affero GPL v3 License terms, with Additional
Terms pursuant to Section 7 of said license."

Which is good, because nothing other than Section 7 allows them to add
additional terms of any sort to the license (see section 10).

Section 7 says:

"When you convey a copy of a covered work, you may at your option remove
any additional permissions from that copy, or from any part of it."

So if you are concerned about the OSD-compliance of the additional
terms, you can simply remove them when you redistribute it. Problem solved.

You do need to obey section 5 about Appropriate Legal Notices. However,
Section 0 of the AGPL defines what can be considered an Appropriate
Legal Notice; anything which Linagora attempts to define as such which
does not meet that definition can be said not to be an Appropriate Legal

Once you have worked out what the Appropriate Legal Notices actually
are, you have all the freedoms given you by sections 0 and 5 about how,
where and when to actually display them.


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