Aristotle Support

Bounce Types

Article ID: 805
Last updated: 07 Mar, 2010

Bounce Types

 

Subscribe Request

Someone is requesting to be added to your opt-in email list. CompleteCampaigns.com looks for subscribe requests in the subject header of the email message, and on the first line of a text based email message. CompleteCampaigns.com parses for subscribe requests in several different 7-bit ascii langauges. (ie. English, Spanish, French, German, etc.)

 

General Bounce

The email server could not deliver your email message, but the bounce message was unclear as to what kind of bounce it was. Most CompleteCampaigns.com users treat these as soft bounces.

Example: "Subject: Undeliverable mail"

 

Mail Block – General

Indicates that the recipient's email server is blocking email from your email server.

Example: "550 Message REFUSED by peer"

 

Bounce No Email Address

CompleteCampaigns.com determined that the message was a bounce, but it could not resolve the original email recipient email address. Rare.

 

Mail Block - Known Spammer

Indicates that the recipient's email server is blocking email from your email server because it believes you are a known spammer.

Example: "REJECT Known SPAM source"

 

Auto Reply

An automatic response from the recipient.

Examples: "Out Of Office", "Vacation Message"

 

Non Bounce

CompleteCampaigns.com determined that the message was not a bounce. This could be a recipient reply, or maybe a bounce format that CompleteCampaigns.com did not recognize.

 

Mail Block - Attachment Detected

Indicates that the recipient's email server is blocking email from your email server because the email message contained an attachment.

Example: "552 Disapproved attachment"

 

Soft Bounce - Mailbox Full

The email server is temporarily unable to deliver your message to the recipient email address because the recipient's email box is full.

Example: "Mailbox over quota"

 

Unsubscribe Request

Recipient is requesting to be removed from future email from you. CompleteCampaigns.com looks for unsubscribe/remove requests in the subject header of the email message, and on the first line of a text based email message. CompleteCampaigns.com parses for unsubscribe requests in several different 7-bit ascii langauges. (ie. English, Spanish, French, German, etc.)

Mail Block - Relay Denied

Indicates that the recipient's email server is blocking email from your email server.

Example: "551 relaying denied"

 

Hard Bounce

The email server could not deliver your email message.

Example: "550 User Unknown"

 

Transient Bounce

The email server temporarily can not deliver your message, but it is still trying.

Examples: "Warning: message still undelivered after 4 hours. Will keep trying until message is 2 days old"

 

Soft Bounce - DNS Failure

The email server is temporarily unable to deliver your message to the recipient email address because of a DNS problem.

Example: "Host is unreachable"

 

Challenge-Response

Challenge-Response email systems were created as a reaction to the increasing circulation of spam. Dubbed as a 100% effective solution to stopping spam from ever reaching users' inboxes, Challenge-Response systems like EarthLink SpamBlocker and SpamArrest, among others, require human intervention for an email message to reach its intended recipient.

In short, a Challenge-Response message is an automatic response from the recipient, requesting that the sender confirm a real person is sending the message. Generally, confirmation is completed manually by clicking on a hyperlink within the Challenge-Response message itself.

When CompleteCampaigns.com determines a message is a Challenge-Response type message, the email address that is returned is the FROM: email address of the system, or person, sending the Challenge-Response message to you. It's been our experience that the original email address of the recipient does not appear within the Challenge-Response message, thus there is no way to retrieve the original email address. You'll be handling these types of messages manually, because that's what they're designed for, so it should be okay that the original email address isn't returned.

 

Soft Bounce – General

The email server is temporarily unable to deliver your message to the recipient email address.

Example: "Connection timed out."

 

Soft Bounce - Message Size Too Large

The email server could not deliver your message to the recipient because the message size is too large.

Example: "Exceeded maximum inbound message size"

 

Mail Block - Spam Detected

Indicates that the recipient's email server is blocking email from your email server because the message appears to have content that looks like spam.

Example: "550 Possible spam detected"

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Article ID: 805
Last updated: 07 Mar, 2010
Revision: 1
Views: 392
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