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How would I break up a Distribution Group email to send in increments in Exchange 2007? RRS feed

  • Question

  • I have a customer who gets bounced by a Barracuda firewall that a majority of their customers use to filter their email.  After they called the vendor filtering the emails, the vendor stated that they needed to send out their Distribution Group emails in smaller batches. I think they should just add this org's email domain as a safe sender, but alas I am wrong.  

    How do I go about setting this up?

    Thursday, March 1, 2012 5:31 PM

Answers

  • How many members per distribution list are we talking about? Hundreds? Thousands?

    Is the number of recipients the problem or the size of attachments?

    Do the vendors control the Barracuda(s?) or does a vendor maintain it for them?

    One might argue that the vendor should be making this work for the customer - unless the number or size of the emails is really extraordinary.

    ---

    Otherwise, how are the distribution lists organized?

    By state/province, customer, department?

    If this was in an academic setting (university for example) you could divide the total number of students into grade or major (specialization).

    I'm not sure what setting you are operating in - other than the business world apparently.


    Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

    • Marked as answer by emma.yoyo Thursday, March 8, 2012 1:40 AM
    Friday, March 2, 2012 1:20 AM
  • On Thu, 1 Mar 2012 17:31:54 +0000, thee_rook wrote:
     
    >
    >
    >I have a customer who gets bounced by a Barracuda firewall that a majority of their customers use to filter their email. After they called the vendor filtering the emails, the vendor stated that they needed to send out their Distribution Group emails in smaller batches. I think they should just add this org's email domain as a safe sender, but alas I am wrong.
     
    That sounds like bad behavior on the part of that security appliance.
    Sending a 4xx status code for each "RCPT TO" in excess of the
    arbitrary limit at the receiver is the normal way to deal with that.
    That causes the "excess" addresses to retried later.
     
    There's no way for the sending server to know in advance what the
    receiver will accept! RFCs define a value of 100 as the minumum value
    used by the receiver for the maximum number of recipients, but they
    don't define any maximum value.
     
    >How do I go about setting this up?
     
    I don't think there's a way to tell a send connector to break up a
    message into separate sessions that use no more than "X" number of
    RCPT TO commands.
     
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Marked as answer by emma.yoyo Thursday, March 8, 2012 1:40 AM
    Friday, March 2, 2012 3:08 AM

All replies

  • How many members per distribution list are we talking about? Hundreds? Thousands?

    Is the number of recipients the problem or the size of attachments?

    Do the vendors control the Barracuda(s?) or does a vendor maintain it for them?

    One might argue that the vendor should be making this work for the customer - unless the number or size of the emails is really extraordinary.

    ---

    Otherwise, how are the distribution lists organized?

    By state/province, customer, department?

    If this was in an academic setting (university for example) you could divide the total number of students into grade or major (specialization).

    I'm not sure what setting you are operating in - other than the business world apparently.


    Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

    • Marked as answer by emma.yoyo Thursday, March 8, 2012 1:40 AM
    Friday, March 2, 2012 1:20 AM
  • On Thu, 1 Mar 2012 17:31:54 +0000, thee_rook wrote:
     
    >
    >
    >I have a customer who gets bounced by a Barracuda firewall that a majority of their customers use to filter their email. After they called the vendor filtering the emails, the vendor stated that they needed to send out their Distribution Group emails in smaller batches. I think they should just add this org's email domain as a safe sender, but alas I am wrong.
     
    That sounds like bad behavior on the part of that security appliance.
    Sending a 4xx status code for each "RCPT TO" in excess of the
    arbitrary limit at the receiver is the normal way to deal with that.
    That causes the "excess" addresses to retried later.
     
    There's no way for the sending server to know in advance what the
    receiver will accept! RFCs define a value of 100 as the minumum value
    used by the receiver for the maximum number of recipients, but they
    don't define any maximum value.
     
    >How do I go about setting this up?
     
    I don't think there's a way to tell a send connector to break up a
    message into separate sessions that use no more than "X" number of
    RCPT TO commands.
     
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Marked as answer by emma.yoyo Thursday, March 8, 2012 1:40 AM
    Friday, March 2, 2012 3:08 AM
  • Hi thee_rook,

    Any updates?

    By the way, Exchange 2007 treats a distribution group as one recipient.

    Managing Message Size Limits

    http://technet.microsoft.com/en-us/library/bb124345(v=exchg.80).aspx

     

    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.


    Frank Wang

    TechNet Community Support

    Monday, March 5, 2012 6:32 AM