Delivery Errors: Daily breakdown on issues related to the delivery of the messages.

  • Rate limit exceeded: The Domain or IP is sending traffic at a suspiciously high rate, due to which temporary rate limits have been imposed. The limit will be lifted when Gmail is confident enough of the nature of the traffic.

  • Suspected spam: The traffic is suspected to be spam, by our systems, for various reasons. Email content is possibly spammy: The traffic is suspected to be spammy, specific to the content.

  • Bad or unsupported attachment: Traffic contains attachments not supported by Gmail.

  • DMARC policy of the sender domain: The sender domain has set up a DMARC rejection policy.

  • Sending IP has low reputation: The IP reputation of the sending IP is very low.

  • Sending domain has low reputation: The Domain reputation of the sending domain is very low.

  • IP is in one or more public RBLs: The IP is listed in one or more public Real-time Blackhole Lists. Work with the RBL to get your IP delisted.

  • Domain is in one or more public RBLs: The Domain is listed in one or more public Real-time Blackhole Lists. Work with the RBL to get your domain delisted.

  • Bad or missing PTR record: The sending IP is missing a PTR record.

IP Reputation: Reports on IPs that were detected for the domain being reviewed.

  • Bad: A history of sending an enormously high volume of spam. Mail coming from this sender will almost always be rejected at SMTP or marked as spam.

  • Low: Known to send a considerable volume of spam regularly, and mail from this sender will likely be marked as spam.

  • Medium/Fair: Known to send good mail, but is prone to sending a low volume of spam intermittently. Most of the email from this sender will have a fair deliverability rate, except when there is a notable increase in spam levels.

  • High: Has a good track record of a very low spam rate, and complies with Gmail's sender guidelines. Mail will rarely be marked by the spam filter.

Spam Rate: provides the percentage of user reported spam. Only emails authenticated by DKIM are eligible for spam rate calculation.

Domain Reputation: data for the sending domain which can be affected by volume and user-reported Spam.

  • Bad: A history of sending an enormously high volume of spam. Mail coming from this sender will almost always be rejected at SMTP or marked as spam.

  • Low: Known to send a considerable volume of spam regularly, and mail from this sender will likely be marked as spam.

  • Medium/Fair: Known to send good mail, but is prone to sending a low volume of spam intermittently. Most of the email from this sender will have a fair deliverability rate, except when there is a notable increase is spam levels.

  • High: Has a good track record of a very low spam rate, and complies with Gmail's sender guidelines. Mail will rarely be marked by the spam filter.

Spam Feedback Loop: flagged identifiers and spam rates based on user Feedback Loop Data.

Authenticated Traffic: percentage of authenticated traffic for SPF, DKIM, and DMARC.

Encrypted Traffic: percentage of traffic that is encrypted with TLS

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