Declining email open rates for political campaigns acquired through Facebook ads, despite strong engagement, present a complex deliverability challenge. While engagement metrics like click-through rates (CtOR) remain robust, a drop in opens suggests issues with inbox placement or recipient perception rather than a lack of initial interest. This phenomenon is particularly noted with Microsoft properties and, increasingly, Gmail. The core challenge often lies in the discrepancy between how subscribers perceive their opt-in (e.g., signing a petition for a specific issue) and the ongoing email cadence or broader content they subsequently receive.
Key findings
Engagement vs. opens: A strong click-through rate alongside declining open rates indicates that the problem may not be content relevance or initial subscriber interest, but rather the email's arrival in the inbox.
Domain-specific declines: Significant drops on specific domains, such as Microsoft properties (Outlook, Hotmail) and Gmail, point to unique filtering behaviors by these mailbox providers.
Acquisition method impact: While Facebook ads and lead generation forms provide explicit opt-in, the quality of these addresses (e.g., decades-old accounts, addresses signed up by others for harassment) can impact long-term deliverability. Verification methods like hidden CAPTCHAs and swift bounce clearing help, but aren't always sufficient.
Political content sensitivity: Political emails often face higher complaint rates compared to other categories, potentially leading to deliverability challenges even with engaged subscribers.
Open rate reliability: Opens are increasingly unreliable as a sole metric for engagement due to false positives (machine opens) and false negatives. Focusing on clicks and conversions provides a more accurate picture of subscriber interest.
Key considerations
Monitor deliverability beyond opens: Utilize tools like Google Postmaster Tools to gain insights into complaints and reputation, especially for Gmail. Similarly, Microsoft SNDS (Smart Network Data Services) can provide data for Hotmail/Outlook.
Review list hygiene practices: While current practices are strong, consider external cleaning services to remove potentially problematic addresses before they impact your main IP/domain reputation. Regularly reviewing how email addresses end up on blacklists can also help.
Align content and expectations: Ensure that the email content consistently aligns with the specific issue or action that prompted the initial subscription. Diverging topics or high frequency could lead to disengagement and spam complaints, even if initial engagement was high. This is particularly relevant given HubSpot's findings on campaign frequency.
Address potential perception gaps: Recipients might assume that signing a petition is a one-off action, not an agreement to receive ongoing campaign emails. This disconnect can lead to unwanted mail classifications by ISPs.
Develop targeted segments: Move beyond basic 'opened in X days' criteria and segment based on deeper engagement. Identify and nurture those subscribers who genuinely want ongoing communication and are willing to take further action.
What email marketers say
Email marketers often grapple with the nuanced challenges of political campaigns, where high initial engagement can mask underlying deliverability issues. The consensus is that while a strong call-to-action (like signing a petition) can drive impressive click-to-open rates, sustaining inbox placement requires constant vigilance and adaptation to mailbox provider algorithms and user behavior, especially given the sensitive nature of political content.
Key opinions
Seeding for inbox placement: Marketers suggest using seeding data to test and ensure emails are actually landing in the inbox across top domains, as volume shifts can quickly impact placement.
Content relevance: The subject matter and content sent after initial engagement must remain consistent with what subscribers initially opted into, otherwise, interest can wane, leading to lower opens.
Open rate limitations: Many marketers acknowledge that open rates are an unreliable metric for engagement due to false positives from machine opens, advocating for a greater focus on clicks and conversions.
Political email challenges: Anecdotal evidence from marketers indicates that political campaigns historically generate high complaint rates, a trend that may have worsened over time.
Defining 'political' traffic: There's a perception that much 'political' email traffic often resembles general newsletters with copied articles and ad space, blurring the lines with what recipients might consider spam.
Key considerations
External list cleaning: Consider cleaning email lists externally before using your main IP or domain, as every bounce can negatively impact deliverability.
Campaign-based hygiene: Relying solely on opened in the last 30 days for segmentation, especially with high sending frequencies, can lead to a large volume of unwanted emails before action is taken, eroding sender reputation. For more details, see our article on what causes sudden email open rate drops.
Frequency optimization: While consistent content is important, ensuring the sending cadence matches recipient expectations and engagement patterns is crucial. Excessive frequency can lead to fatigue and spam complaints.
Aligning sender and recipient expectations: It's vital to bridge the gap between what senders believe they have permission for and what recipients actually want. This misalignment can lead to filtering by ISPs. Campaign Monitor suggests a high click-to-open rate is a sign of engaging content, but this needs to translate to inboxing.
Marketer view
Email marketer from Email Geeks suggests that marketers often don't verify email addresses submitted through lead generation forms thoroughly enough. Even with hidden CAPTCHAs, a quick welcome series is essential to clear out bounces and problematic addresses early on.
05 Jul 2022 - Email Geeks
Marketer view
An email marketer from Mailchimp resources explains that marketers should not solely rely on open rates for segmenting decisions, as they are often unreliable. They advise focusing on other metrics like clicks and conversions to gauge true engagement and decide if opens are correlating with other performance indicators.
23 Apr 2023 - Mailchimp
What the experts say
Deliverability experts highlight that political campaigns face unique challenges in email deliverability, often struggling with perceptions of unwanted mail despite explicit opt-ins. The core issue frequently stems from a disconnect between what a recipient expects after a single action (like signing a petition) and the sender's strategy for ongoing communication. Mailbox providers' machine learning filters are increasingly sophisticated in identifying and filtering mail that, while technically opted-in, is perceived as unwanted by the user.
Key opinions
Facebook address age: Experts note that Facebook-acquired addresses can be decades old, leading to many dead or abandoned accounts that negatively impact deliverability.
Petition sign-up quality: Acquiring addresses through petitions is described as a 'crapshoot' without strong verification. This can lead to invalid addresses or people receiving unwanted mail if they didn't expect ongoing communication.
Political harassment: Political issues are susceptible to malicious sign-ups where individuals sign up addresses of those who disagree with their position, leading to spam complaints for the legitimate sender.
Filter sophistication: Declines are often due to machine learning filters identifying that recipients don't truly want the mail, regardless of initial engagement. This means mail is often filtered even if it doesn't get a spam complaint.
Recipient control: Everything in email reinforces the idea that the user controls their inbox. Filters use recipient data to determine what is wanted and what isn't, independent of the sender's perception of permission.
Key considerations
Verify email addresses: Implement robust verification processes to ensure that the person submitting an email address actually owns it, reducing bad data and potential spam traps.
Monitor deliverability reputation: Beyond basic blacklisting, actively monitor your deliverability reputation with ISP-powered tools like Google Postmaster Tools and Microsoft SNDS to catch issues early. For more detailed information on monitoring, refer to our DMARC monitoring page.
Adapt hygiene for political nuances: Standard list hygiene rules, such as suppressing based on recent opens, may not fully address the unique challenges of political mail, where permission can be tenuous or short-lived.
Re-evaluate permission expectations: Senders need to understand that signing a petition doesn't automatically imply consent for ongoing, broad political mail. Communications must align with the specific intent of the opt-in. A relevant read is Cambridge Core on voter persuasion tactics, which touches on campaign engagement.
Invest in audience development: Focus efforts on identifying and nurturing subscribers who genuinely want ongoing political engagement, rather than simply maximizing list size. This requires more strategic investment in audience building. Learn more about why open rates decline for campaigns.
Expert view
Deliverability expert from Email Geeks suggests that Google Postmaster Tools can be a valuable resource for identifying the general areas, such as complaints, that might be causing deliverability issues with Gmail. They also advise ruling out statistical issues, like measuring open rates based on increased global sending volume versus discrete sends.
05 Jul 2022 - Email Geeks
Expert view
An expert from Spam Resource observes that a significant portion of political mail streams have inherent problems not adequately addressed by common best practices. They note that filters are evolving to sort mail based on user preference, making traditional hygiene less effective for these unique issues.
18 Mar 2023 - Spam Resource
What the documentation says
Official documentation and research often highlight key factors influencing email deliverability, emphasizing the importance of sender reputation, audience engagement, and robust data practices. While not always directly addressing political campaigns, the principles articulated apply universally, underscoring that perceived unwanted mail, even if initially opted-in, will face filtering. Benchmarks provided by industry leaders offer a valuable context for evaluating open rate performance, suggesting when declines warrant deeper investigation into underlying deliverability health.
Key findings
Reputation is paramount: Mailbox providers heavily rely on sender reputation to determine inbox placement. Factors like complaint rates, spam trap hits, and engagement signals (opens, clicks, unsubscribes) all contribute to this score.
Engagement defines deliverability: While opens can be misleading, overall engagement (clicks, replies, forwards) signals to ISPs that recipients value the mail, which is critical for consistent inboxing. Low engagement leads to lower inbox placement even if the initial open rate appears acceptable.
Opt-in quality: Even explicit opt-in can be insufficient if the method of acquisition (e.g., lead forms on third-party platforms) introduces poor-quality, aged, or disengaged addresses into the list. Continual validation is key.
Content relevance and consistency: Mailbox providers assess if the content matches what users typically engage with from a sender. Significant shifts in content or an increase in promotional versus expected informational emails can trigger filtering.
Key considerations
Benchmark comparison: Referencing industry benchmarks, such as those provided by Mailchimp on email marketing performance, can help identify if your open rate decline is part of a broader trend or specific to your campaigns.
Technical authentication: Ensure proper implementation of email authentication protocols like SPF, DKIM, and DMARC. These are foundational for establishing sender legitimacy and preventing spoofing, which directly impacts trust with mailbox providers. Our simple guide to DMARC, SPF, and DKIM can provide further assistance.
Consent granularity: Documentation often implies that consent is not a blanket permission. Campaigns should ideally allow subscribers to define their preferred content topics and frequency. For example, a subscriber to a single petition might not want a broader political newsletter. This aligns with findings on average ad click through rates, where initial clicks don't guarantee ongoing engagement.
Technical article
Research from Campaign Monitor indicates that a high click-to-open rate is a key indicator of engaging content and strong calls-to-action. This metric helps assess how well the email's content resonates with recipients who opened it.
12 Jan 2022 - Campaign Monitor
Technical article
Documentation from Mailchimp emphasizes that email marketing benchmarks are crucial for businesses to understand their campaign performance and measure against industry standards. These benchmarks provide context for analyzing open rates and other key metrics.