Website & Email Redirection Setup from current domain to new domain name

I recently re-branded and now work under a new domain. I need a smooth hand-off so nobody gets lost on the way.

Here’s what I’m looking for:

• A clean one-page landing site on the new domain that introduces the refreshed brand, shows basic contact details and a short services blurb, and includes a clear call-to-action form.
• A proper 301 redirect from every page of the old site to the new home page so visitors and search engines automatically land in the right place and my SEO value is preserved.
• Email forwarding that catches anything sent to anyname@old-domain and delivers it to the matching mailbox on the new domain, with SPF, DKIM and MX records correctly updated so replies don’t end up in spam.
• Brief hand-over notes that show where the DNS, web and mail settings live in case I need to tweak them later.

Please handle the DNS changes, hosting configuration and basic testing so I can switch over in one go without downtime. I’m flexible on tools and budget; I just want a dependable solution that works first time.