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.

From Nov 20th to Dec 20th, sending a personal letter-style email from a founder or executive to unengaged contacts can increase open rates by 40%. The key is changing the "from name" to a person, not the brand, and using a subject line that acknowledges their absence. This strategy works for both B2B and B2C brands.

Email providers prioritize senders with high engagement. Sending at least five emails per month generates more opens and clicks, signaling credibility. This counterintuitively leads to higher average open rates and better inbox placement, contrary to the common fear of over-sending.

Getting users to reply to your marketing emails is the number one signal to email providers that your content is valued. This action helps your future emails avoid the spam or junk folder, significantly improving deliverability and overall engagement.

Prompting subscribers with simple, non-work-related questions (e.g., "What's your favorite holiday cookie?") encourages replies. This builds a conversational relationship, improves engagement signals, and positively impacts email deliverability and open rates.

Incorporate simple, conversational questions into emails to encourage replies. This engagement signals to email service providers that your content is valuable, improving deliverability. It also helps build a stronger relationship with your audience by starting a two-way conversation.

The idea of a single best time to send an email is outdated.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.

Despite claims that Apple's privacy changes and bots have made them irrelevant, open rates remain a valuable leading indicator for email performance. Marketers who dismiss them are ignoring a crucial signal of audience engagement and list health. These metrics are provided by platforms and should be monitored.

During BFCM, consumer inboxes are flooded. To break through, brands should send multiple emails per day, including resends (e.g., 3 scheduled emails plus a resend for each). The incremental revenue gained from this high frequency justifies the potential increase in spam complaints.