Alessandro, with the undotting leading dot fix, I went back and adding
code to adjust for this by undotting it in the C14N code and what a
major difference compared to the failed rate listed before:
Failure rates for level encoding type (OLD)
+--------------------------------------------------------+
| enctype total bodyfail pct |
|--------------------------------------------------------|
| 8bit 31 25 80.6 |
| 5461 1236 22.6 |
| binary 5 1 20.0 |
| quoted-printable 1188 179 15.0 |
| base64 32 3 9.3 |
| 7bit 1465 106 7.2 |
+--------------------------------------------------------+
Failure rates for encoding type (NEW)
+----------------------------------------------+
| enctype total bodyfail pct |
|----------------------------------------------|
| 8bit 31 22 71.0 |
| binary 5 1 20.0 |
| base64 32 3 9.4 |
| quoted-printable 1206 107 8.9 |
| 7bit 1654 85 5.1 |
| 5512 188 3.4 |
+----------------------------------------------+
+----------------------------------------------+
| OLD NEW |
| hash bodyfail bodyfail |
|----------------------------------------------|
| relaxed/relaxed 1085 238 |
| relaxed/simple 276 56 |
| simple/simple 215 112 |
+----------------------------------------------+
Overall
OLD: 18.7% failure
NEW: 4.8% failure
and the major contributor to this is that I have no more
facebookmail.com failures!
When I remove the domains I know, the rest is pretty much spam. :)
Hector Santos wrote:
> Alessandro Vesely wrote:
>
>> For example, MTAs that autoconvert from quoted-printable to 8bit, a
>> rather common circumstance.
>
> I did the following Content-Transfer-Encoding failure analysis:
>
> Failure rates for message top level encoding type
> +--------------------------------------------------------+
> | enctype total bodyfail pct |
> |--------------------------------------------------------|
> | 8bit 31 25 80.6 |
> | 5461 1236 22.6 |
> | binary 5 1 20.0 |
> | quoted-printable 1188 179 15.0 |
> | base64 32 3 9.3 |
> | 7bit 1465 106 7.2 |
> +--------------------------------------------------------+
>
> Based on my PCN, 8bit does have a high rate of failure, but they are a
> very small amount of the grand total. The encoding types; QP, base64
> and 7bit offers the better lower failure rate. Except for the 3
> base64 fails, but I can't tell if they originated that way or not. I
> will take a SWAG that these represent direct messages and were not
> going thru a list.
>
> It would be interesting to see what Murray can show for his volume
> collection.
>
--
Hector Santos, CTO
http://www.santronics.com
http://santronics.blogspot.com
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