Outlook Attachment Blocking - Strange Behavior

[TonyB]

Hello

Folks have sent me messages that have a sequence of files. For example
the message will have several attachments listed like this: 1.pdf.,
2.pdf,3.pdf.

It looks like MS Outlook reads the attachment as “.pdf.” and “.pdf,”;
which is technically an unknown file extension, instead of reading
each attachment as a “.pdf”

I am able to view “.pdf” attachments

Any ideas?

Thanks,

Anthony