EMAIL_ADDRESSES=(
    e.litherlandsmith@proton.me
    e.litherlandsmith@icloud.com
    evie.litherland-smith@ukaea.uk
)
LABELS=("Proton" "iCloud" "Outlook")

for i in "${!EMAIL_ADDRESSES[@]}"; do
    ADDRESS="${EMAIL_ADDRESSES[$i]}"
    LABEL="${LABELS[$i]}"
    secret-tool lookup email "$ADDRESS" >/dev/null || (
        echo "Setup $LABEL"
        secret-tool store --label="$LABEL mail mbsync" email "$ADDRESS"
    )
done