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  1. Restricting Sending Mails from Particular Recipients

    Dear All,

    Please help us out with the following scenario.

    Our Requirement is When a recipient sends an E Mail to a external Domain, The external recipient should be able to get an opt out...
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    We have tried removing the...

    We have tried removing the smtpd_recipient_restrictions from the main.cf. restarted the Postfix service as well.
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    Tried following the Threads but no luck..Still...

    Tried following the Threads but no luck..Still facing the same issue.
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    The Zimbra.log looks like Jun 29 08:50:37...

    The Zimbra.log looks like
    Jun 29 08:50:37 192.168.1.29 postfix/smtpd[736]: fatal: parameter "smtpd_recipient_restrictions": specify at least one working instance of: check_relay_domains,...
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    The ZCS Version is 7.1.4 . All the certficates...

    The ZCS Version is 7.1.4 . All the certficates are still to expire on 2023. I have already checked the forums but found no issue as some forums says the issues is with some E mail Addresses. But we...
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    We have been sending E Mails to both internal...

    We have been sending E Mails to both internal Addresses and as well as External E Mail Domains. We are facing the error since yesterday and cannot able to send e mails to any domain.
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    Unable To Send E Mail

    Hello,

    We have Zimbra Open Verison 7.0 on Suse Linux . While Sending E Mail We are getting the following Error. Can anyone please help me out


    Could not send message: mail.SEND_FAILURE...
  8. As per our clinets requirement we need to enable...

    As per our clinets requirement we need to enable TLS Authentication only for the particlaur Domain. PLease let us know hw can I configure the same for enabling both inbound and outbound e mails with...
  9. Zimbra Colloboration Server Open Source Edition...

    Zimbra Colloboration Server Open Source Edition Version 7 on SUse Linux 10
  10. TLS Authentication in Zimbra Collaboration Open Source Server

    Hello,

    Please help me out in the Configuration of TLS Authentication in Zimbra Collaboration Open Source Server version 7.

    Thanks in ADVANCE

    Arun
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    TLS Certificate Installation

    Hello,

    Can anyone help me out in installing TLS Certificate in Zimbra. I would like to purchase the certificate from a Provider rather than using Self Signed. Please suggest me if any. Help me...
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    I mean is there any possibility I am referring..I...

    I mean is there any possibility I am referring..I can use the same no issues. But one more Query like ending & receiving to a particular recepient domain can have TLS or if enabled TLS it will work...
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    I want only a group of users to have TLS...

    I want only a group of users to have TLS Authentication not all users or any mail sending & receiving to a particular recepient domain not all domains should have TLS.
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    Enabling TLS between two Domains

    Hello,

    As per our requirement, is there any way to enable TLS between to particular domains for both inbound and outbound E mails. Whether self signed certificate can be generated for TLS and...
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