What causes high spam complaint rates in Gmail, and how can they be fixed?
Summary
What email marketers say8Marketer opinions
Email marketer from Twilio SendGrid reports that improving email engagement rates is the best way to reduce spam complaints. They said to segment your lists based on subscriber activity, send targeted content, and use A/B testing to optimize subject lines and email copy.
Email marketer from Mailjet shares that irrelevant content, sending too frequently, and not providing an easy way to unsubscribe all contribute to spam complaints. Fixes include sending targeted content, respecting send frequency, and making the unsubscribe process clear and accessible.
Marketer from Email Geeks shares that users who sign up for lead magnets, such as '20% off', will likely mark repeat emails as spam.
Email marketer from Reddit shares that a common cause of spam complaints is that users forget they subscribed. Reminding users how they signed up, offering preference updates, and honoring unsubscription requests immediately can help reduce complaints.
Email marketer from Email Marketing Forum suggests that sending emails too frequently causes user annoyance and results in spam complaints. They said to implement a reasonable sending schedule, based on user preferences, and to test sending frequency to find the optimal balance.
Email marketer from Neil Patel shares that high spam complaint rates are caused by sending irrelevant content to subscribers. Fixes include improving segmentation and personalization to ensure subscribers receive content they find valuable.
Email marketer from HubSpot explains that spam complaints arise from sending emails to outdated lists, not obtaining proper consent, or having misleading subject lines. They say that to fix this, regularly clean email lists, get explicit opt-in, and ensure the subject line accurately reflects the email's content.
Email marketer from Litmus discusses "list bombing" a practice where companies add users to a list without their permission. They share the importance of using double opt-in to verify email addresses and ensure subscribers genuinely want to receive communications.
What the experts say5Expert opinions
Expert from Email Geeks states that if recipients have unsubscribed and you continue to mail them, you are breaking the law in the US.
Expert from Email Geeks explains that the high spam complaint rate (7%) indicates recipients are actively marking emails as spam within their email clients. The expert emphasizes that you can't technically solve the problem of people not wanting your emails and that continually mailing recipients who don't want your emails will result in delivery issues.
Expert from Word to the Wise shares that properly handling unsubscribe requests is essential to reducing spam complaints. They suggest providing a clear and easy way to unsubscribe, and immediately removing unsubscribed users from the mailing list to respect their preferences and avoid further complaints.
Expert from Word to the Wise emphasizes that list quality is paramount to avoid spam complaints. Using double opt-in, cleaning inactive subscribers, and avoiding purchased lists are crucial to maintaining a healthy, engaged audience.
Expert from Spam Resource explains that Complaint Feedback Loops (FBLs) from ISPs and ESPs help identify and remove users who mark emails as spam. Proper FBL implementation and monitoring helps reduce spam complaints by identifying problem addresses.
What the documentation says5Technical articles
Documentation from Google Support explains that high spam rates in Gmail are influenced by factors such as sending unsolicited mail, lack of proper authentication, and sudden spikes in email volume. To fix it, they advise authenticating emails with SPF, DKIM, and DMARC, adhering to recommended sending limits, and monitoring feedback loops.
Documentation from DMARC.org shares that not authenticating your emails using SPF, DKIM, and DMARC can lead to deliverability problems and increased spam complaints. Implement email authentication protocols to verify the sender's identity and protect against phishing and spoofing.
Documentation from Microsoft explains that spam complaints are a key factor in determining whether an email lands in the junk folder. Microsoft advises that to minimize spam complaints, you should obtain explicit consent from recipients, provide clear instructions on how to unsubscribe, and ensure content is relevant to the subscriber's interests.
Documentation from Validity says that spam complaints directly damage sender reputation, leading to deliverability issues. To mitigate this, the documentation says to monitor sender reputation metrics, promptly remove complainers from your list, and implement best practices for list hygiene.
Documentation from Spamhaus explains that sending emails to spam traps (email addresses used to identify spammers) increases spam complaint rates and damages sender reputation. They share that to avoid spam traps, use double opt-in, regularly clean email lists, and avoid purchasing email lists.