I manage a few lists housed on the same server at my university. We use Listserv 16.0. The configurations for all my lists are mostly the same. In the last couple of weeks I began getting a huge increase in addresses on the daily error manitoring report for one of the lists. The increase looks like it's a yahoo/dmarc issue. Here's a typical example:

Last error: 5.0.0 5.3.0 - Other mail system problem 550-'5.7.0 (SNT004-MC8F1) Unfortunately, messages from (216.145.160.112) on behalf of (YAHOO.COM) could not be delivered due to domain owner policy restrictions.' (delivery attempts: 0)

Below are the configuration settings for the problem list and another list that has similar settings but is not having these problems. Can anyone suggest what I need to do:

Thanks,
Pat Williams

Problem list:

Confidential= No
Subject-Tag= "TBA"
Attachments= Yes
Errors-To= Owner
Digest= Yes,Same,Daily,00
Default-Options= SUBJECTHDR,NOACK,REPRO
Auto-Delete= Yes,Semi-Auto,Delay(10),Max(100),Probe(30)
Subscription= Open
Send= Private
Notify= Yes
Reply-to= List,Respect
Validate= Yes,Confirm
Notebook= Yes,/var/www/html/archives/tba-l,Monthly,Public
Ack= Yes
Daily-Threshold= 200
Owner= [log in to unmask],[log in to unmask]

No-problem list:

Subject-Tag= "ACCSHE"
Attachments= Yes
Errors-To= Owner
Digest= Yes,Same,Daily,Size(1000000)
Daily-Threshold= 100,100
Default-Options= SUBJECTHDR,NOACK,REPRO
Auto-Delete= Yes,Semi-Auto,Delay(10),Max(100),Probe(30)
Subscription= Open
Send= Private
Notify= Yes
Reply-to= List,Respect
Validate= Yes,Confirm
Notebook= Yes,/var/www/html/archives/accshe,Monthly,Public
Owner= [log in to unmask] (Patrick Williams)

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