Emojis in adult email subject lines can help catch attention when used carefully. One or two emojis that match the topic can make the subject line stand out in a crowded inbox. For example, using a fire emoji or a heart symbol might grab interest quickly. But adding too many can make the email look spammy or unprofessional, especially in the adult niche. Some email services might also block or filter messages with emojis, which can hurt deliverability. It's also good to think about your audience—some people may find emojis too playful for adult content. So, testing a few subject lines with and without emojis might help you know what gets more opens. Have you ever seen a subject line with emojis that made you want to open the email?