Email expert for linking

I am looking for an email expert who can help me with linking my email accounts.
I need to send 10,000 emails.

Skills and Experience:
- Proficiency in the chosen email platform (Gmail, Outlook, or other specified platform)
- Experience in linking multiple email accounts
- Familiarity with email syncing with software or applications
- Ability to work with 1-3 email accounts and successfully link them.