oiksp_newsletters – filter Discover other active newsletters. Hook name: oiksp_newslettersHook type: filterPlugin ref: oik-squeezeSourcefile: File ref: oiksp_squeeze_options() – Display the opted-in settingsDescription: Discover other active newsletters. Parameters: Deprecated?: NoAPI Letters: N,OInvokers1 to 1 of 1oiksp_newsletters() – Determine the 3rd party newsletter software to integrate withImplementers1 to 1 of 1oiksp_newsletters_filter() – We need to find a better way of detecting which Newsletters are available.Published: August 4, 2014 | Last updated: March 31, 2017