Search Inbox, page cached mail, and download older history
Use advanced filters and persistent background downloads without loading every body at once.
Search the downloaded cache
In Inbox, choose an account/folder and use Search emails. The filter/sliders icon opens advanced search: From, To (including Cc), Subject, included/excluded words, message size, date window, attachment presence, and folder/label criteria. Included words must all occur; any excluded word rejects the message. These are literal filters, not Gmail operator syntax or attachment-content searches.
Select Search to apply the panel or clear applied filters to broaden results. Closing without Search discards unsubmitted edits. All Mail excludes Drafts, Spam, and Trash; search those folders explicitly when needed. Size is based on available cached message data and may differ from the provider's original wire-size figure.

Use compact pagination
Choose 25, 50, or 100 messages per page; the default is 50. Use first/previous/next/last controls and inspect the total count. Search/filter criteria apply before counting and paging. Message bodies load when selected and are cached for faster repeated reading; Chat can show the full cached conversation.
Download older mail
- Open Inbox → Mail history sync.
- Check progress per account and configured mailbox. Initial discovery identifies available messages; recent messages are downloaded first, then older pending history.
- Choose a history batch size (25/50/100/200; default 100) and pause/resume older-history downloads as needed.
- Keep AeroMailer open or in the tray, awake, online, and with sufficient disk space.
The checkpoint and pause/batch preferences survive restart. Pausing history does not stop new incoming mail or required unsubscribe/bounce catch-up. Already cached bodies are not downloaded again simply because you reopen Inbox.
Know the limits
Search finds downloaded mail only, not an immediate remote-server search. The first complete history download can take time, bandwidth, and storage. Each connection mirrors its configured mailbox, not arbitrary provider folders. Local folder/read changes are not a promise of provider-side synchronization.
Older-history downloads do not generate a flood of new-mail alerts or trigger standalone Auto Forward. Default agents do not reply to old history unless existing-message processing is explicitly enabled. If mailbox identity changes, older cached mail can move into local Archive instead of being deleted.