How to respond if Gmail declares your sender domain to be spam
Sender domain reputation matters a great deal in successful inbox placement. Numerous factors like email subject and content, sender domain reputation, and mailing list quality play a vital role in building up domain reputation. ESPs and ISPs measure reputation for every sender domain, based on their sending practices. The domain reputation decreases whenever the email sending practice does not meet the required standard. When the reputation falls below a stipulated threshold, your sender domain may get blacklisted.
When Gmail views some practices of a sender domain as suspicious or when the reputation of a sender domain decreases beyond a particular threshold, all emails from your sender domain will land in spam and users will receive the following message:
"Lots of messages from yourdomain.com were identified as spam in the past"
The following are a set of possible scenarios which may have lead to the above notification. Make sure to avoid these practices in the future:
- Using a secondary domain (other than the domain of your official website) to send emails. Your contacts may not recognize the relationship between the two different domains. If you still want to use a secondary domain, make sure to include the signup URL in the footer of the email for the contact to verify the connection between the domains.
- Your email subject may not convey the message you actually intended to deliver to your contacts. Due to this, your contacts may feel mislead and mark you as spam. Ensure that your subject and content are relevant to each other.
- Zoho Marketing Automation strongly recommends that you follow permission-based email marketing. Ensure that all of your contacts are opt-in and that you have obtained their consent to send newsletters.
- Your mailing list may contain old and idle contacts with whom you haven't emailed in the last three months. When you send an email after a long gap, they may not recognize you and hence may mark your email as spam. Convert inactive contacts into opt-in contacts by sending re-engagement emails and clean your list from uninterested contacts.
- Avoid flooding the inboxes of your contacts with several emails in a short duration. This creates more chances of Gmail labeling your emails as spam. Always give regular intervals between your consecutive campaigns.
- Seeking sensitive information in the email content or in an immediate landing page from a URL is considered spam triggering. So, your contacts may have felt it suspicious. If it is necessary to collect sensitive information, then you can add an optional step to ask such details while your contacts sign up.
- Usage of certain words in content/subject such as buy, order, discount, clearance, dear friend, as seen on, please help, free, offer, desperate, additional income, etc may result in marking of spam. These words may raise the suspicion of either your contacts or Gmail. It's strongly recommended to avoid usage of spam-triggering words in both subject and email content.
The reputation of your domain might have been reduced due to any of the above scenarios. There are some suggestions from our deliverability team. Senders can make use of the given suggestions to avoid further decline in their domain reputation.
- Gently remind your contacts to add your sender address to their address book or safe senders' list.
- Ensure that your domain has a good reputation in Gmail by using Postmaster Tool to analyze your email performance, its reputation, and other vital factors. Using this data, you can realize the current status of your domain reputation and act accordingly.
- Incorporate the following lines as footer data while sending out email campaigns, especially while sending to Gmail users:
- If you see this email in your spam folder, kindly add us to your address book for our regular communication.
- If you are not interested in receiving our emails, you can unsubscribe.
- If you see this email in the Promotions tab, kindly drag and drop it into your Primary tab so that our future emails will arrive in your inbox.
- You're receiving this email as you have signed up with us at "sign up URL".
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