Forward any address to Bosun
Fastmail, Zoho, Proton, IONOS, an IT company runs it, or you're not sure — the shape is always the same: find the forwarding or routing setting, and point a copy of inbound mail at your Bosun ingest address.
Find where the address is managed. Search your provider's help for “forward email to another address” or “email routing”.
Create a forward from your shared address to your Bosun ingest address (shown during Bosun setup, e.g.
in-8f3a2c94@in.usebosun.com).Prefer “forward and keep a copy” where offered, so nothing changes for anyone still reading the old mailbox.
If the provider sends a verification email first, it arrives in Bosun — open it there and click the link.
Check it worked: Bosun's setup screen watches live for the first forwarded email — send yourself a test and watch it arrive.
Still not working?
Email us the provider name at hello@usebosun.com and we'll
send back the exact clicks. If you got a bounce code, the
fixes index explains the common ones.