Sorry for the slow response, but I have made some progress with the issue= .=0A=0A(as an aside, I installed a build from LTB, and unfortunately it d= oes not=0Acontain this overlay)=0A=0AI have detailed my findings (includi= ng some trawling through the source) =0Aover on the FreeBSD bug tracker, = as I suspect it could well be a platform=0Arelated issue. Nonetheless, it= might be worth reading:=0Ahttps://bugs.freebsd.org/bugzilla/show_bug.cgi= ?id=3D197004=0A=0AJanuary 14 2015 4:31 PM, "Quanah Gibson-Mount" <quanah@= zimbra.com> wrote: =0A> --On Wednesday, January 14, 2015 11:00 AM +0000 f= reebsd@jonathanprice.org=0A> wrote:=0A> =0A>> Hi,=0A>> =0A>> I tried 2.4.= 39 under FreeBSD and still had the same issue.=0A>> =0A>> I have also tri= ed the packages for both CentOS 7 and Debian Wheezy, but=0A>> unfortunate= ly neither of them include the SHA2 overlay by default.=0A>> =0A>> Finall= y, I tried installing zimbra-core and zimbra-ldap under CentOS.=0A>> When= I used this installation, it worked successfully.=0A>> =0A>> I ran slapd= -V on the zimbra installation, and it's 2.4.39. However,=0A>> based on i= t still not working on 2.4.39 on FreeBSD it appears to have=0A>> narrowed= it down to two reasons: - An issue with the packaging under=0A>> FreeBSD= =0A>> - The functionality is specific to Zimbra=0A>> =0A>> The next step = in the process to narrow this down is to do a manual=0A>> compilation on = CentOS, including the SHA2 overlay. If this works, then it=0A>> would con= firm it to be a FreeBSD issue, and if it doesn't work that would=0A>> str= ongly suggest that Zimbra has modified something.=0A> =0A> You could simp= ly grab the LTB project builds. I'm pretty sure they build=0A> out the co= ntrib modules.=0A> =0A> In any case, I already noted that Zimbra doesn't = patch anything in OpenLDAP=0A> that would affect this area.=0A> =0A> --Qu= anah=0A> =0A> --=0A> =0A> Quanah Gibson-Mount=0A> Platform Architect=0A> = Zimbra, Inc. =0A> _______________________________=0A> =0A> Zimbra :: the = leader in open source messaging and collaboration