Issue with Distribution List when sending

Nady 1 Reputation point
2024-12-09T20:23:43.6866667+00:00

i have DL have all company users 

previously work normally 

today when i sent email to group have all company user message not deliver   

when i trace message 

Failed     Reason: [{LED=550 5.2.13 RESOLVER.RST.RecipSizeLimit.DL; message length exceeds administrative limit};{MSG=};{FQDN=};{IP=};{LRT=}] Drop 

Reason: [{LED=250 2.1.5 RESOLVER.RST.RecipientDiscarded; recipient discarded due to failed distribution group limits check};{MSG=};{FQDN=};{IP=};{LRT=}] how can i solve it

 

was worked normally i didn't do any changes on group

kindly advise me 

 

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 151.1K Reputation points MVP
    2024-12-09T20:26:25.94+00:00

    Sounds like the message is too large:

    550 5.2.13 RESOLVER.RST.RecipSizeLimit

    0 comments No comments

  2. Jenne Li-MSFT 1,080 Reputation points Microsoft Vendor
    2024-12-10T07:42:18.6466667+00:00

    Hi @Nady

    Thanks for posting your question in the Microsoft Q&A forum.

    According to your description, you send an email to a group, it fails to be delivered, and the failure reason is displayed as LED=550 5.2.13 RESOLVER.RST.RecipSizeLimit.DL and LED=250 2.1.5 RESOLVER.RST.RecipientDiscarded. This may be because the message is too large and exceeds the recipient limit. You can try the following methods to solve it:

    1. Try to resend the email without any attachments.
    2. Use the command Get-DistributionGroup | Format-List Name,MaxReceiveSize,MaxSendSize to view the size limit of sending and receiving emails for the distribution group and check whether the email you sent exceeds the limit.
    3. If it exceeds the limit, you can compress the email to send; or use the command Get-DistributionGroup -Identity "GroupName" | Set-DistributionGroup -MaxReceiveSize 500MB,MaxSendSize 500MB to change the size limit of sending and receiving emails for the specified distribution group.

    If you have any questions, please feel free to contact me. If the answer is helpful, please click "Accept Answer" because it can help other members of the Microsoft Q&A community who have encountered similar problems and are looking for solutions. Thank you.

    Best,

    Jeanne


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