Annature uses a trusted, high-deliverability email provider to ensure your envelopes and notifications reach recipients reliably. To protect the sender reputation of all customers, our system actively monitors failed delivery attempts—automatically applying temporary or permanent blocks (denylists) when email issues occur repeatedly. This helps keep your messages trusted by mail providers and prevents deliverability problems across your organisation.
Soft bounces are temporary issues and usually don’t mean the email address is invalid. They may occur when:
A recipient’s mailbox is full
The receiving mail server is temporarily unavailable
The server accepts email but encounters a temporary issue while processing it
To protect system reputation, Annature applies escalating denylist rules if a soft bounce happens repeatedly:
First soft bounce → blocked for 24 hours
Second soft bounce → blocked for 7 days
Third soft bounce → blocked for 30 days
Fourth soft bounce → permanently denylisted
These time-based blocks stop your organisation from unknowingly sending repeated messages to an unstable inbox.
Hard bounces indicate more permanent issues, such as:
The email address doesn’t exist
The domain is invalid
The recipient’s email server confirms the mailbox is not real
Because these failures strongly impact email reputation:
First hard bounce → blocked for 30 days
Second hard bounce → permanently denylisted
This helps prevent future attempts to email addresses that are not valid.
If a recipient marks your email as spam, this signals to mail providers that messages were unwanted.
To protect all Annature users:
Spam complaints → automatically denylisted for 365 days
This safeguard helps maintain long-term deliverability and prevents future issues with mail providers.
Whenever an email cannot be delivered, Annature automatically notifies the sender.
These notifications typically include:
A short diagnostic message
The reason for failure (bounce, block, spam report, etc.)
When viewing the envelope in your Annature dashboard:
The recipient’s status will show as Failed
Clicking the status reveals detailed error information
You can take next steps—such as checking for typos, updating the address, or contacting support
Organisation Owners can also access a complete overview via Settings → Email History, which includes:
Delivery timestamps
Open and click activity
Failure reasons
Overall email performance
This makes troubleshooting fast and transparent. You can learn more on Email history here.
If you believe the email address is valid:
Contact Annature Support
We can review the denylist entry and remove it if appropriate.
Resend the message once the block is lifted.
However, it’s important to note:
Removing a block does not always resolve the underlying issue.
If emails continue to bounce or fail, the problem is likely on the recipient’s side.
We recommend asking the recipient or their IT team to check:
Inbox storage
Spam filters
Allowlist settings
Email server configuration
Email deliverability issues can be frustrating, but Annature provides full visibility, automatic protection, and responsive support to keep your communication running smoothly.
If you ever need help, our team is ready to assist.
