The error was coming from the incorrectly named report in my doCmd line. Once I fixed it, it worked!
The addresses listed in the report are inserted

Here is the code:
Code:
Sub cmdMail_Click()On Error GoTo cmdEmail_Click_Err
Dim rs As Recordset
Set rs = CurrentDb.OpenRecordset("select [Email] from qryReportEmail")
If rs.RecordCount > 0 Then
rs.MoveFirst
Do Until rs.EOF
If IsNull(rs![Email]) Then
rs.MoveNext
Else
strAddresses = rs![Email] & ";" & strAddresses
rs.MoveNext
End If
Loop
End If
DoCmd.SendObject acSendReport, "rptPendingResolution", "PDFFormat (*.pdf)", strAddresses, "", "", "Pending Resolutions requiring your attention", "Please see attachment", True, ""
cmdEmail_Click_Exit:
Exit Sub
cmdEmail_Click_Err:
MsgBox Error$
Resume cmdEmail_Click_Exit
End Sub