AB Data

What is Blacklisting? Blacklists are databases of IP addresses and domains known to send spam or unsolicited mail. Examples include Spamhaus, SURBL, SORBS, and Barracuda. When your IP or domain is on such a list, email providers will block or severely filter all emails originating from it.

The ...

What is Blacklisting? Blacklists are databases of IP addresses and domains known to send spam or unsolicited mail. Examples include Spamhaus, SURBL, SORBS, and Barracuda. When your IP or domain is on such a list, email providers will block or severely filter all emails originating from it.

The ...

What is Blacklisting? Blacklists are databases of IP addresses and domains known to send spam or unsolicited mail. Examples include Spamhaus, SURBL, SORBS, and Barracuda. When your IP or domain is on such a list, email providers will block or severely filter all emails originating from it.

The ...

Definition: The number of times recipients click the "report spam" or "junk" button in their email client.
Impact on Sender Reputation: ISPs meticulously track spam complaints. A high complaint rate (typically above 0.1%) tells ISPs that your sending practices are problematic, whether it's ...

The open rate is the percentage of recipients who open your email. It's often the first metric email marketers look at, and for good reason: if an email isn't opened, its content, call-to-action, and ultimate purpose are rendered moot. A declining open rate, particularly when not correlated with ...

Emails Landing in Spam Folders: If your sender reputation has already taken a hit due to high bounces, complaints, or spam trap hits, your emails may be increasingly filtered into spam or junk folders by ISPs. Emails in these folders are rarely seen, leading to a dramatic drop in opens even if the ...

Crucial Action: Hard-bounced addresses must be immediately and permanently removed from your mailing list. Sending to them repeatedly signals to ISPs that you are either using an old, uncleaned list or are intentionally sending to invalid addresses, which can lead to blacklisting. Most reputable ...

Irrelevant Content to an Unsegmented or Poorly Targeted List: If your list contains a broad mix of subscribers with diverse interests (a common characteristic of poorly maintained or acquired lists), your generic content may not resonate with a large portion of them, leading to few clicks. A dirty ...

Subscribers Who Initially Opted In But Are No Longer Interested: While some churn is natural, a high rate suggests that you might be holding onto subscribers who have long disengaged, perhaps due to poor list hygiene practices that prevent you from identifying and segmenting them earlier. It's ...

Definition: The number of times recipients click the "report spam" or "junk" button in their email client. ISPs typically share this data with your ESP.

Impact on Sender Reputation: ISPs meticulously track spam complaints. A high complaint rate (typically above 0.1% of delivered emails, though even ...