Related Article: What's the difference between a Soft and Hard bounce?
Experiencing general delays? Try testing to a personal email address. If the delay persists in free-mail accounts, you may want to check on the deliverability set-up for your sending domain.
Related Article: What's the difference between a Soft and Hard bounce?
| Bounce category in Postmastery | Campaign based | Account based | Possible reasons or action |
| bad-mailbox | Hard bounce | Hard bounce | Reason: Most important category, measurable by ISP |
| inactive-mailbox | Hard bounce | Hard bounce | Reason: Typically disabled or discontinued account |
| quota-issues | Soft bounce | Hard bounce - After 5 different campaigns | Reason: Typically an "inactive" contact. |
| bad-domain | Hard bounce | Hard bounce |
Reason: The DNS server is down. Action: Ask recipient contact to check whether their email server was inactive a the time of send. |
| no-answer-from-host | Soft bounce | Hard bounce - After 5 different campaigns | Reason: Typically registered domain without mail accounts |
| relaying-issues | Soft bounce | Hard bounce - After 5 different campaigns |
Reason: The MX record (sender) might be down at that time. Action: Check with your IT Team to confirm whether any changes to your DNS records were made during the time of send. |
| routing-errors | Soft bounce | Soft bounce - After 5 days of the same campaign (Depends on the mail server) |
Reason: The MX record (sender) might be down at that time. Action: Check with your IT Team to confirm whether any changes to your DNS records were made during the time of send. |
| bad-connection | Soft bounce | Hard bounce - After 5 different campaigns |
Reason: Typically valid domain with abrupt disconnect. Action: Reach out to our Support Team via Live Chat or Support Email |
| invalid-sender | Soft bounce | Hard bounce - After 5 different campaigns |
Reason: SPF, DKIM, and DMARC are not set up correctly or are misconfigured, which can result in mass bounce. Action: Reach out to our Support Team via Live Chat or Support Email |
| spam-related | Soft bounce | Hard bounce - After 5 different campaigns | Action: Check content and reputation |
| virus-related | Soft bounce | Hard bounce - After 5 different campaigns | Action: Check content and reputation |
| content-related | Soft bounce | Hard bounce - After 5 different campaigns | Action: Check content and reputation |
| policy-related | Soft bounce | Hard bounce - After 5 different campaigns | Action: Check the reverse DNS and reputation. |
| bad-configuration | Soft bounce | Hard bounce - After 5 different campaigns | Action: Reach out to our Support Team via Live Chat or Support Emai |
| protocol-errors | Soft bounce | Hard bounce - After 5 different campaigns | Action: Reach out to our Support Team via Live Chat or Support Emai |
| message-expired | Soft bounce | Soft bounce - After 5 different campaigns | Reason: Typically, a timeout due to throttling by the receiver |
| other | Soft bounce | Soft bounce - After 5 different campaigns | Reason: Typically, due to a missing bounce pattern |
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