The original regression only exercised a from_address match with all three
identity fields set to the same value, so it couldn't distinguish whether
_self_addresses actually picks up smtp_username and imap_username or just
collapses on from_address. Add a parametrized test covering:
- smtp_username-only match (from_address empty, imap_username different) —
simulates SMTP relays that rewrite outbound From to the login identity.
- imap_username-only match — simulates mailbox-identity setups.
- Case-insensitive match — inbound From arriving upper-cased must still hit.
No production code changes.
Made-with: Cursor
Skip inbound emails that come from the bot's own configured addresses so a mailbox wired to the same SMTP/IMAP account does not trigger infinite reply loops.
Save inbound email attachments to the media directory with configurable
MIME type filtering (glob patterns like "image/*"), per-attachment size
limits, and max attachment count. Filenames are sanitized to prevent
path traversal. Controlled by allowed_attachment_types — empty (default)
means disabled, non-empty enables extraction for matching types.
