Question:   I can't find anything on this maybe someone can help me locate a reason why some messages are marked:  "Delivery for sender@domain.com to recipient@mydomain.com has completed (Deleted) Filter: None"

1.  Message never shows up in user inbox recipient@mydomain.com.

Here is a full Delivery log:

[2018.12.15] 02:48:41 [07377] Delivery started for noreply@dmarc.yahoo.com at 2:48:41 AM
[2018.12.15] 02:48:53 [07377] Spam check results: [_REVERSEDNSLOOKUP: passed], [_COMMTOUCH: 12,Bulk], [_INTERNALSPAMASSASSIN: 0:0], [_SPF: None], [_DK: None], [_DKIM: Pass], [_CUSTOMRULES: ], [BARRACUDA BRBL: passed]
[2018.12.15] 02:48:56 [07377] Starting local delivery to dmarc@mydomain.com
[2018.12.15] 02:48:56 [07377] Delivery for noreply@dmarc.yahoo.com to dmarc@mydomain.com has completed (Deleted) Filter: None
[2018.12.15] 02:48:56 [07377] End delivery to dmarc@mydomain.com
[2018.12.15] 02:48:56 [07377] Delivery finished for noreply@dmarc.yahoo.com at 2:48:56 AM    [id:-44779407377]

We do delete messages if spam weight is too high:

".....has completed (Deleted) Filter: Spam (Weight: 52), Action (Global Level): Delete"

or if its a content filter, logs would show me which one removed it:

".....has completed (Deleted) Filter: Internal Blocked Senders"

This one I can't figure out:

".....has completed (Deleted) Filter: None"

I did check and didn't find any Content Filters called "None".

Thanks for your help.