Email marketing remains one of the most effective tools in a digital marketer's toolkit, but it’s easy to fall into common traps. One major mistake is neglecting mobile optimization. With over half of emails opened on mobile, a poorly formatted message can lose a potential customer. Another mistake is sending emails too frequently. This leads to fatigue and higher unsubscribe rates. On the flip side, sending too rarely can cause your audience to forget you. Balance is key. Also, failing to segment your list is a big error. Not all subscribers are the same; treating them as such weakens your message. Using a no-reply address can make your brand seem distant. Always allow for replies to show you value customer interaction. Avoid poor subject lines that either oversell or bore your audience. Testing is crucial—never assume what works. Not cleaning your email list regularly leads to poor deliverability. High bounce rates and unengaged users hurt your sender reputation. Lastly, ignoring analytics is a missed opportunity. Measure performance, learn from results, and refine your strategy. Avoiding these mistakes will dramatically improve your campaign outcomes.