| Field   | Match                       | Criteria                                                                                                                                                                                                                                                |
| ------- | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Subject | matches regular expression | `(([Ii]nvoice|[Rr]ecei(pts?|ved)|[Pp]ayment|[Oo]rder|[Ss]ale|[Ss]ubscription|[Aa]uthori[zs]ed|[Ss]ent|[Ss]tatement|[Cc]onfirm(ation|ed)|[Bb]ooking|[Cc]omplete|[Cc]laim|[Tt]ransaction|[Bb]ill(ing)?|[Rr]enewal|[Ww]ithdrawal|[Pp]urchased?)(\b.*?|$))` |
| Subject | matches regular expression | `([Aa]mazon|receipt from).*\b(order|[Aa]pple).*`                                                                                                                                                                                                        |
| Subject | matches regular expression | `([Cc]redit).*\b([Aa]lert|[Ss]core|[Rr]eport).*`                                                                                                                                                                                                                                                        |