Smtp mail not being received

Posted on 2004-10-22
Last Modified: 2008-01-09
We have a strange problem. We use the Symantec SMTP gateway ver 3.1 for all incoming and outgoing emails. We have received complaints from different users that they are not receiving emails from certain email addresses. When we investigated we found that mail from domains starting with " x " are being bounced back , there are three domains we have identified based on our user feedback .. they are, and These are the ones reported but it is quite possible that all domains starting with "x"are getting bounced.

Has anyone come across this problem and what is the resolution to this.?

Question by:pintoa2000
    LVL 1

    Accepted Solution

    Are you doing domain filtering ?  
    Possibly filtering out XXX domains, but the filter is blocking all domains starting with X ?

    Author Comment

    Here is the error that we get on our smpt gateway log when receiving mail from the domains as mentioned earlier.. i.e the domain names starting with x

    Info: Permanent error involving remote host.  Info2: 550 Mail from rejected  
    LVL 34

    Assisted Solution

    OK, that message is telling you that the incomng E-Mail is being rejected during the MAIL FROM: portion of the initial SMTP conversation.

    Like flyfreak, I would suspect some sort of filtering rule that is too broad. I would examine the Symantec configuration and look for rules/settings that block mail from a given Domain, especially ones that use templates or wildcards to define the rule.
    LVL 4

    Expert Comment

    it would be configuration which blocks all the domain that starts with xxx such as will be blocked, and it happens to be on the setings you have somehting like that as a wild card

    that is my quess anyway
    LVL 34

    Expert Comment

    I thot I said that.

    Author Comment

    There was a filter in our Groupwise internet agent for blocking all incoming email from x*

    Wonder who put it there.. time for a good change management system.. any ideas.?

    Thanks a lot
    LVL 34

    Expert Comment

    My best idea is to limit access to that portion of GroupWise. It may be easier to do this if the GWIA is in a Secondary Domain and on a separate physical server.

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