The concept of a single best day and time to send an email is misleading. Instead, marketers should vary send times throughout the week to reach different segments of their audience. The key metric is the aggregate number of unique individuals engaged weekly, not the performance of a single blast.

Sales teams often coast during the holidays, causing a slow Q1 start. The "30-day rule" posits that prospecting efforts in one month directly impact the pipeline for the next 90 days. Halting activity in December is the direct cause of a predictable January and February slump.

Contrary to the fear of over-sending, emailing at least five times per month improves deliverability. Email providers view consistent recipient engagement (opens, clicks) as a sign of a credible sender, leading to better inbox placement and significantly higher open rates.

Instead of optimizing for a single "best" send time, marketers should vary sending days and times (e.g., evenings, weekends). This strategy acknowledges that different people within your database interact with email at different times, maximizing overall reach and engagement across your entire list.

In the first two weeks of the year, your audience's attention span is extremely short as they catch up on work. Cater to this mindset by using shorter subject lines, concise body copy, and designs with plenty of white space in emails and social posts to improve consumption.

The holiday season sees a massive spike in email unsubscribes. This isn't due to your marketing efforts, but because people are trying to "clean up" their inboxes for the new year. Marketers should anticipate this trend and not misinterpret it as a sign of poor campaign performance or reduce email frequency.

The idea of a single best time to send an email is outdated. Instead, measure success by the weekly aggregate of unique individuals opening your emails. Sending at various days and times hits different audience segments, maximizing your total reach over time.

Animated GIFs aren't just for flair; they are a proven tactic to increase email engagement. Data shows they can lift click-through rates by approximately 20%. Their effectiveness is particularly high during the holiday season from November through December, a period when audiences are more receptive to dynamic content.

Every email campaign has a different role. An event follow-up's goal might be to generate replies, making that the key metric. A nurture email aims for value delivery, while a sales email aims for demos. Judge each campaign by its intended outcome, not by universal vanity metrics.