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Envelope-to changes in cPanel 58

gizzmo2006
Hello, after the update to 11.58.20 there are more than one mailadresses in the envelope-to field when a mail was sent to more than one recipient at the same domain. Looks like this: Return-path: Envelope-to: ixxxxx@xxxxxxxng.de, vxxxxxxxx@xxxxxxxxng.de But Tobit can work only with one mailadress in the Envelope-to Field. If there are more than one ardesses in this field, every user will get the same mail multiple times. Any idea, how i can fix this? Regards Frank

Comments

7 comments

Date Votes
  • cPanelMichael
    Hello, The following resolution in cPanel 58.0.23 should address this issue: Fixed case CPANEL-7953: Avoid batching recipients not in a visible header. You can review the full change log, information on updating cPanel/WHM, and information on the build/release process at:
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  • gizzmo2006
    Hello Michael, thank you for Response. But sorry, this is not correct. I`m running build 11.24. If there are more than one recipient at the same Domain, the envelope-to: Field will look exact like this: Envelope-to: [EMAIL='ixxxxx@xxxxxxxng.de">ixxxxx@xxxxxxxng.de[/EMAIL], [EMAIL='vxxxxxxxx@xxxxxxxxng.de">vxxxxxxxx@xxxxxxxxng.de[/EMAIL] Tobit can not work with this. Every recipient in the envelope-to: Field will get as much copies of the mail as there will be envelope-to: adresses filed in... Regards Frank
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  • cPanelMichael
    Tobit can not work with this. Every recipient in the envelope-to: Field will get as much copies of the mail as there will be envelope-to: adresses filed in...

    Could you verify if the application sends out emails using the "BCC" or "CC" fields, or if it just includes all recipients in the "To" field? Thank you.
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  • gizzmo2006
    Hello Michael, i tried both. With BCC only one adress is in envelope-to field. With CC all adresses from CC will be in envelope-to field.
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  • cPanelMichael
    i tried both. With BCC only one adress is in envelope-to field. With CC all adresses from CC will be in envelope-to field.

    It's by design that email addresses added to the "CC" line of the email are included on the "Envelope-To" line in the message header. Splitting the deliveries for each email address into separate LMTP transactions would result in a performance loss. This is further explained on the following Exim Users thread: why multiple recipients in Envelope-To header? | exim | users You could disable the envelope_to_add directive in the Exim configuration, however that would break email filtering. I reccomend reaching out to the developers of the script you are using to see if there are any options available to use "BCC" instead of "CC" for these emails. Thank you.
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  • gizzmo2006
    Hello Michael, with envelope-to disabled, Tobit can not work with.. I can send in BCC with my Clients. But i can not do it on every mail client all over the world.. This is are no Solutions to fix the problem.. In earlier Versions of exim this has all been single Transactions and i never had Performance Problems. I found a batch_max Setting in exim.conf: batch_max = 200 Is there a way to modify exim to work without Batch? I have set it to 1, but no changes?
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  • cPanelMichael
    I found a batch_max Setting in exim.conf: batch_max = 200 Is there a way to modify exim to work without Batch? I have set it to 1, but no changes?

    Here are the relevant entries in the /etc/exim.conf file:
    dovecot_delivery: driver = lmtp socket = /var/run/dovecot/lmtp batch_max = 200 rcpt_include_affixes delivery_date_add envelope_to_add return_path_add dovecot_virtual_delivery: driver = lmtp socket = /var/run/dovecot/lmtp batch_max = 200 rcpt_include_affixes delivery_date_add envelope_to_add return_path_add
    Could you let us know what method you used to modify the batch_max value? Did you restart Exim after making the changes? Thank you.
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