A low email open rate means few recipients opened your email. A rate below 15% is often considered low in most industries. You should analyze your email strategy if your open rate falls below this range. Low open rates suggest your subject lines lack appeal. Low open rates may also indicate poor targeting of your audience. You should focus on sending relevant and personalized content. You should avoid spammy or unclear subject lines. Your sender reputation can also affect open rates. You should ensure your email list is clean and updated. Low open rates require adjustments to improve engagement.