Function GET

Returns Promise<
    | NextResponse<
        {
            id: string;
            userId: string;
            user: { email: string; id: string; name: string
            | null };
            email: string;
            imapHost: string;
            imapPort: number;
            username: string;
            provider: string;
            isActive: boolean;
            lastSync: Date | null;
            syncEnabled: boolean;
            syncFrequency: number;
            createdAt: Date;
            archivedEmailsCount: number;
        }[],
    >
    | NextResponse<{ error: any }>,
>