tnorman
asked on
Office 365 Spam Filtering
Hello Everyone,
I am asking this question just to make sure that all bases are covered.
I have a client who has been in regular communication with a customer via email. One or two emails (out of dozens) haven't arrived. We look in the message tracking logs, do a variety of searches, and these emails do not appear in any log. Nothing in Quarantine, Junk Folder, anything.
If a message was received by the O365 servers and was blocked for any reason, shouldn't that show up in the log detailing why?
Is there some kind of 'perimeter' filter that may have blocked a message prior to it getting to a place where it shows up in my clients O365 logs?
The customer received no NDR, and when they resent (i.e. forwarded from their Sent Items) it did appear at my client.
The customer is at home and uses the email address supplied by her (big) ISP. Troubleshooting on that end is limited.
There isn't an issue with attachment size (one email had attachments, the other did not). The only thing that was a bit off was that it was a long email chain of a lot of replies back and forth. And, if it matters, there was some (very slight) language in the email.
Am I missing something here I don't know about O365?
I am asking this question just to make sure that all bases are covered.
I have a client who has been in regular communication with a customer via email. One or two emails (out of dozens) haven't arrived. We look in the message tracking logs, do a variety of searches, and these emails do not appear in any log. Nothing in Quarantine, Junk Folder, anything.
If a message was received by the O365 servers and was blocked for any reason, shouldn't that show up in the log detailing why?
Is there some kind of 'perimeter' filter that may have blocked a message prior to it getting to a place where it shows up in my clients O365 logs?
The customer received no NDR, and when they resent (i.e. forwarded from their Sent Items) it did appear at my client.
The customer is at home and uses the email address supplied by her (big) ISP. Troubleshooting on that end is limited.
There isn't an issue with attachment size (one email had attachments, the other did not). The only thing that was a bit off was that it was a long email chain of a lot of replies back and forth. And, if it matters, there was some (very slight) language in the email.
Am I missing something here I don't know about O365?
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ASKER
Is there any way to view what was filtered by the perimeter filter or the malware filter?
No, only some raw numbers for the amount of blocked mail. Best ask for a trace on sender's side IMO.
ASKER
Thanks everyone for their input, and Whoajack for the note about allowing emails.
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Also you can just put a theirDomain.com to blanket allow that company. Also we wrap this in a PowerShell GUI application to make it really easy to mass-manage this for many users or groups within the company, as that type of issue comes up pretty frequently.