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Hard vs. soft bounce
  • Vote Up0Vote Down jpanseljpansel
    Posts: 36Sendy user
    Hi,

    I have 3 questions:

    • Does Sendy process soft bounces differently than hard bounces ?

    • What happens when an email address bounces once ? Is it immediately blacklisted, or will sendy try again next time ?

    • Yesterday I saw on Sendy's report that one of my users had just read my newsletter. Today I received an bounce alert ("Message expired: unable to deliver in 1440 minutes") for this user, same newsletter (I have not sent any other newsletter since). Do you have any idea how it is possible ?

    Thanks a lot !
  • 3 Comments
  • Vote Up0Vote Down BenBen
    Posts: 3,507Sendy support
    When Amazon SES returns a bounced address, it'll be marked as 'bounced' in Sendy. Future emails will not be sent to them. We'll handle soft bounce soon as well, thanks for bringing this up. :)

    For your last question, is this an email message? Where was it from?
  • Vote Up0Vote Down jpanseljpansel
    Posts: 36Sendy user
    Hi Ben,

    The bounce email message was sent from MAILER-DAEMON@amazonses.com and it immediately showed up in Sendy's stats as bounced.

    "Delivery failed txxx@xxx.com.
    An error occurred while trying to deliver this message to the recipient's email address. We will not try to redeliver
    this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.Reporting-MTA: dsn; aws-ses-mta-svc-iad-i-ba0e55c7.us-east-1.amazon.com

    Final-Recipient: rfc822; txxx@xxx.com
    Action: failed
    Status: 4.4.7
    Diagnostic-Code: smtp; 550 4.4.7 Message expired: unable to deliver in 1440 minutes."

    image
  • Vote Up0Vote Down BenBen
    Posts: 3,507Sendy support
    As 'soft bounce' is now introduced in 1.0.9, this thread will now close.
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