+ Post New Thread
Results 1 to 4 of 4
Enterprise Software Thread, Exchange 2007 "reply" emails being bounced in Technical; Hi everyone. This issue started happening around mid day yesterday. Exchange 2007, outlook clients (2007 - 2013) We can send ...
  1. #1

    Join Date
    Jan 2014
    Posts
    17
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Exclamation Exchange 2007 "reply" emails being bounced

    Hi everyone.

    This issue started happening around mid day yesterday.

    Exchange 2007, outlook clients (2007 - 2013)

    We can send and receive emails OK with one big exception; anyone outside our organization who replies to an email gets bounced with a "571: Delivery not authorized" message.

    An external sender can send us a new email absolutely fine but if the same person replies to one of ours it's bounced.

    Nothing (that I know of) has been changed at this end and until yesterday there were no problems.

    I'm not coming up with any conclusive answers, does anyone have any ideas? I could do with a very quick fix here.

  2. #2

    Join Date
    Apr 2008
    Location
    Keighley, West Yorks
    Posts
    321
    Thank Post
    51
    Thanked 49 Times in 43 Posts
    Rep Power
    21
    Do you have one domain, or more than one?

    Are your outgoing emails correctly going from the email address you expect, or are they going out from a domain you only use internally (for example)?

    Thus when they write a new email to you, they address it to you@yourschool.com, but when you send an email out it goes from you@internal.yourschool.com so when they reply, the reply tries to go to you@internal.yourschool.com which is configured to only allow internal emails?

    Peter

  3. #3

    Join Date
    Jan 2014
    Posts
    17
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    ***Update***

    Denial is being carried out by the spamblocker service on our WatchGuard XTM505. As a temporary measure I've changed the proxy action to add a label rather than block the message.

    However, this begs the question: why would WatchGuard suddenly start to see any replies to our emails as "confirmed spam"? I've made no changes either to Exchange or WatchGuard. I can't see anything in the mail headers that's untoward.

    Does anyone have any idea what I could / should be looking for?

  4. #4

    Join Date
    Jan 2014
    Posts
    17
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Hi Howartp, our posts crossed.

    As you can see it's not an exchange issue, well not directly anyway. I can see no anomalies in the reply-to or any other part of the header but WatchGuard insists that any reply is spam so there must be something that I'm missing.

SHARE:
+ Post New Thread

Similar Threads

  1. Exchange 2007 freezes when replying to emails
    By Altyboys in forum Enterprise Software
    Replies: 11
    Last Post: 23rd June 2011, 03:41 PM
  2. Replies: 3
    Last Post: 6th August 2010, 11:02 AM
  3. Replies: 6
    Last Post: 15th June 2010, 11:47 PM
  4. Is this quote good? Can it be beaten?
    By danielson81 in forum Budgets and Expenditure
    Replies: 15
    Last Post: 21st August 2008, 05:57 PM
  5. Exchange 2007 not sending emails
    By MarkB in forum Windows
    Replies: 16
    Last Post: 31st July 2007, 10:25 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •