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Read what EGOL wrote. It depends upon the nature of your blog pagination There are a few reasons you could have pagination within the blog area of your site Your articles have next buttons and different parts of the article are split across multiple URLs. The content across the paginated elements is distinct Your post feeds are paginated, purely so people can browse to pages of 'older posts' and see what your wrote way back into your archives Your blog posts exist on a single URL, but when users comment on your posts, your individual posts gain paginated iterations so that users to browse multiple pages of UGC comments (as they apply to an individual post) In the case of 2 or 3 it's not necessarry to have unique H1s or Page Titles on such paginated addresses, except under exceptional circumstances. In the case of #1 you should make the effort!

What I mean by one-to-one redirects is redirecting each page on one domain (the ones with incoming traffic or links) to the equivalent page on the other domain.  They are standard redirects. Ex:  fullcompanyname.com/category/product1 to compname.com/cat/product1 Hope that helps.

You don't want duplicate or near duplicates in the same account for sure. Last I checked, that's a violation of The Googles terms of service. Naturally you want everything to be as accurate as possible. I would probably Report the old, inaccurate listing as closed and verify the new listing with the correct information at roughly the same time. Then hustle and update all of the top tier listings with the old suite number. And when I say Top Tier, I mean pretty much anything Moz Local would feed if/when you have an account. Then I would prioritize top listings by some combination of city and category. There are probably also some 'hidden gems' that show well for your client's geo/keyword combinations. If you use Moz Local to do the job, make sure you submit the new NAP.

Alot of search bar functions really don't provide accurate results, hence I would agree with you on not having this. Focus on good SEO. Organising blog posts into specific categories and then proper internal linking to encourage site dwell time and utlimately where you would like to end up is far more valuable (but more work).

I am confused about the tracking code as well.  If the tracking code are parameters appended to the url, it shouldnt have anything to do with a valid url. Maybe you should carify with an example: Scenario #1 - www.site.com/email is a valid url, and the link from the newsletter is www.site.com/email?utm_source=newsletter, the link should still work.  The tracking parameters have nothing to do with a page not working.  If the page still exists without the tracking parameters in the url, then you have an IIS/IT issue.  I have seen this one time where dynamic parameters (anything after a question mark) did cause issues on the server and it returned a 404 everytime you hit a page and put in parameters into the url string.  Its a systematic fix in the server settings and you would need to look to your host/IT to fix the issue and allow dynamic parameters in url strings. Scenario #2 - www.site.com/email is no longer a vaild page, because it was set up a long time ago for the email campaign, then page is no longer there.  In this case, no matter what the link is (tracking or no tracking), you will need to do a 301 redirect on the root url www.site.com/email and all variation of that url (including tracking urls) will automatically redirect to a specified page. If the 301 redirecting is not working, then you have set it up wrong. It would be worth your time to manually go through and redirect each url to a proper spot, but worst case scenario is to do what Moosa Hemani pointed out and do a great 404 page.