Here's what rhymes with gmail.
male mail nail ail ale fail sale pale sail tail tale jail rail veil gale hail shale whale bail email vale wail bale dale pail quail snail hale quale kale grail faille wale scale trail avail entail frail stale assail curtail inhale flail braille gunwale unveil impale carrell detail exhale bewail derail mainsail pigtail monorail wassail pellmell hangnail hightail lugsail prevail travail fingernail ponytail topsail countervail foresail taffrail bobtail martingale nonpareil swallowtail tattletale