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Email bounce types
knowledge.hubspot.com
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“If you are sending an email to multiple recipients, it may bounce for some contacts and be delivered for others.” Please note: HubSpot aims to detect bounces of one-to-one emails and emails sent through the sequences tool, but some bounced emails don't provide enough information for HubSpot to fully identify the root cause of the failed send. Bounces for emails sent outside of HubSpot will not be detected. Types of bounces Hard bounce: usually indicates a permanent error, but can also be caused by a strict email security filter. To protect your email sender reputation, HubSpot excludes these contacts from future emails. Soft bounce: indicates a temporary problem with the recipient's server, or another temporary technical problem. Contacts who soft bounce are eligible to receive future emails. Pending bounce: caused by a temporary technical issue with either the sending or receiving email server. HubSpot continues to try sending the email for up to 72 hours. If the message isn't delivered during that time, it becomes a soft bounce. Global bounce: a hard bounce across three or more HubSpot accounts for a permanent reason, such as unknown user or mailbox full. Global bounces are dropped from future emails across all HubSpot accounts to prevent damage to sender reputation. If you believe an email address flagged as a global bounce is valid, contact HubSpot Support with a screenshot of an email you received from the bounced address showing the sender, recipient, and send date & time. Hard bounce errors and recommendations The possible reasons why a contact hard bounced are included below: Unknown user: this email address is invalid. HubSpot automatically drops contacts from future emails if they bounce for this reason. If a contact bounces for this reason across three HubSpot accounts, the email address is globally bounced. Mailbox full: an inbox that is inactive or has exceeded its storage quota for a long time. HubSpot automatically drops contacts from future emails if they bounce for this reason.
“Bounces refer to issues with a specific recipient.” Please note: HubSpot aims to detect bounces of one-to-one emails and emails sent through the sequences tool, but some bounced emails don't provide enough information for HubSpot to fully identify the root cause of the failed send. Bounces for emails sent outside of HubSpot will not be detected. Types of bounces Hard bounce: usually indicates a permanent error, but can also be caused by a strict email security filter. To protect your email sender reputation, HubSpot excludes these contacts from future emails. Soft bounce: indicates a temporary problem with the recipient's server, or another temporary technical problem. Contacts who soft bounce are eligible to receive future emails. Pending bounce: caused by a temporary technical issue with either the sending or receiving email server. HubSpot continues to try sending the email for up to 72 hours. If the message isn't delivered during that time, it becomes a soft bounce. Global bounce: a hard bounce across three or more HubSpot accounts for a permanent reason, such as unknown user or mailbox full. Global bounces are dropped from future emails across all HubSpot accounts to prevent damage to sender reputation. If you believe an email address flagged as a global bounce is valid, contact HubSpot Support with a screenshot of an email you received from the bounced address showing the sender, recipient, and send date & time. Hard bounce errors and recommendations The possible reasons why a contact hard bounced are included below: Unknown user: this email address is invalid. HubSpot automatically drops contacts from future emails if they bounce for this reason. If a contact bounces for this reason across three HubSpot accounts, the email address is globally bounced. Mailbox full: an inbox that is inactive or has exceeded its storage quota for a long time. HubSpot automatically drops contacts from future emails if they bounce for this reason.
“Bounces refer to issues with a specific recipient.” Please note: HubSpot aims to detect bounces of one-to-one emails and emails sent through the sequences tool, but some bounced emails don't provide enough information for HubSpot to fully identify the root cause of the failed send. Bounces for emails sent outside of HubSpot will not be detected. Types of bounces Hard bounce: usually indicates a permanent error, but can also be caused by a strict email security filter. To protect your email sender reputation, HubSpot excludes these contacts from future emails. Soft bounce: indicates a temporary problem with the recipient's server, or another temporary technical problem. Contacts who soft bounce are eligible to receive future emails. Pending bounce: caused by a temporary technical issue with either the sending or receiving email server. HubSpot continues to try sending the email for up to 72 hours. If the message isn't delivered during that time, it becomes a soft bounce. Global bounce: a hard bounce across three or more HubSpot accounts for a permanent reason, such as unknown user or mailbox full. Global bounces are dropped from future emails across all HubSpot accounts to prevent damage to sender reputation. If you believe an email address flagged as a global bounce is valid, contact HubSpot Support with a screenshot of an email you received from the bounced address showing the sender, recipient, and send date & time. Hard bounce errors and recommendations The possible reasons why a contact hard bounced are included below: Unknown user: this email address is invalid. HubSpot automatically drops contacts from future emails if they bounce for this reason. If a contact bounces for this reason across three HubSpot accounts, the email address is globally bounced. Mailbox full: an inbox that is inactive or has exceeded its storage quota for a long time. HubSpot automatically drops contacts from future emails if they bounce for this reason.
“When this occurs, the recipient's email server will send an automated message called a Non-Delivery Report (NDR) with more details about the issue.” Please note: HubSpot aims to detect bounces of one-to-one emails and emails sent through the sequences tool, but some bounced emails don't provide enough information for HubSpot to fully identify the root cause of the failed send. Bounces for emails sent outside of HubSpot will not be detected. Types of bounces Hard bounce: usually indicates a permanent error, but can also be caused by a strict email security filter. To protect your email sender reputation, HubSpot excludes these contacts from future emails. Soft bounce: indicates a temporary problem with the recipient's server, or another temporary technical problem. Contacts who soft bounce are eligible to receive future emails. Pending bounce: caused by a temporary technical issue with either the sending or receiving email server. HubSpot continues to try sending the email for up to 72 hours. If the message isn't delivered during that time, it becomes a soft bounce. Global bounce: a hard bounce across three or more HubSpot accounts for a permanent reason, such as unknown user or mailbox full. Global bounces are dropped from future emails across all HubSpot accounts to prevent damage to sender reputation. If you believe an email address flagged as a global bounce is valid, contact HubSpot Support with a screenshot of an email you received from the bounced address showing the sender, recipient, and send date & time. Hard bounce errors and recommendations The possible reasons why a contact hard bounced are included below: Unknown user: this email address is invalid. HubSpot automatically drops contacts from future emails if they bounce for this reason. If a contact bounces for this reason across three HubSpot accounts, the email address is globally bounced. Mailbox full: an inbox that is inactive or has exceeded its storage quota for a long time. HubSpot automatically drops contacts from future emails if they bounce for this reason.
“If you are sending an email to multiple recipients, it may bounce for some contacts and be delivered for others.” Please note: HubSpot aims to detect bounces of one-to-one emails and emails sent through the sequences tool, but some bounced emails don't provide enough information for HubSpot to fully identify the root cause of the failed send. Bounces for emails sent outside of HubSpot will not be detected. Types of bounces Hard bounce: usually indicates a permanent error, but can also be caused by a strict email security filter. To protect your email sender reputation, HubSpot excludes these contacts from future emails. Soft bounce: indicates a temporary problem with the recipient's server, or another temporary technical problem. Contacts who soft bounce are eligible to receive future emails. Pending bounce: caused by a temporary technical issue with either the sending or receiving email server. HubSpot continues to try sending the email for up to 72 hours. If the message isn't delivered during that time, it becomes a soft bounce. Global bounce: a hard bounce across three or more HubSpot accounts for a permanent reason, such as unknown user or mailbox full. Global bounces are dropped from future emails across all HubSpot accounts to prevent damage to sender reputation. If you believe an email address flagged as a global bounce is valid, contact HubSpot Support with a screenshot of an email you received from the bounced address showing the sender, recipient, and send date & time. Hard bounce errors and recommendations The possible reasons why a contact hard bounced are included below: Unknown user: this email address is invalid. HubSpot automatically drops contacts from future emails if they bounce for this reason. If a contact bounces for this reason across three HubSpot accounts, the email address is globally bounced. Mailbox full: an inbox that is inactive or has exceeded its storage quota for a long time. HubSpot automatically drops contacts from future emails if they bounce for this reason.