I'm merging a number of blogs on a multisite setup using the export/import posts and users tools.
That works fine but I would then like to 301 redirect the posts from the old site to the new site and delete the old site.
I'm wondering if someone who has done this can shed some light on the best approach. I've redirected one domain to another in the past, but this a subdomain of a WP multisite redirecting to another subdomain, and WP multisite already does some 301 redirection stuff of it's own which I don;t want to break - e.g. I deleted one old blog that had no posts in it (didn't need to redirect anything) but visiting that deleted blog redirects to the homepage of the multisite setup, which is great in this instance, but for the old posts that are being merged into a new blog I would like to redirect so that anyone looking for those ends up in the right place.