Just tried that with my own account, 7 .s sent, 7 displayed. I still
suspect that the problem may be due to the fact that the extension
"reads" the email on the website, converts it back to a POP format email
and finally acts as as POP server to send the message to TB. Plenty of
scope in that process for unintentional alteration of some trivial
nature, but enough to cause a digital signature to fail.
Chris Clifton wrote:
What happens if you view the message on the website? If Google has
already removed the period, the extension is faithfully downloading
what Google displays, it can't do anything else.
Gil wrote:
Here are some more details.
If I send myself a message, and the message has in it a line with just
periods (at least two), the Webmail Extension (GMail) will load the
message missing one period.
This happens even if there is no signature on the message. The
signature was just the way that I detected this problem.
On Jan 6, 8:53 pm, Gil <[email protected]> wrote:
I have diagnosed to this to where maybe it can be debugged.
The email in question includes one line with the following
text: .......
That is, my correspondent wrote a line with 7 periods in it.
When I download the message using a POP server, the line comes through
with the 7 periods, and the signature is just fine.
When I download the message using the Webmail extension, the line
comes through with only 6 periods. The Webmail extension loses one of
the periods somehow.
Because the Webmail extension has essentially tampered with the body
of the message (by removing a period), Thunderbird detects that fact
(because the signature is wrong) and reports that to me.
On Jan 6, 6:32 pm, Gil <[email protected]> wrote:
The sender was using Thunderbird, sending mail through their ISP's
SMTP server. Hotmail was not involved.
When I got home, I downloaded the message using Thunderbird and
GMail's POP server. The digital signature is just fine when I
download it that way.
Thunderbird reports the signature as invalid only if I
download the
message using the Webmail extension. It may be that the extension is
modifying the message in some trivial way (e.g., deleting a trailing
space) that renders the signature invalid.
On Jan 6, 3:00 pm, KE4AVB <[email protected]> wrote:
Gil,
Your sender would not happen be use of the free Hotmail
service would
they? I have had problems sending signed and/or encrypted messages
through their service. They are opening and adding Hotmail
taglines to
the messages sent thought their service thus invaliding the
signatures
and encryptions. The same problem could be happening to other service
providers depending how they operate. The Hotmail problem occurs if I
use the online webmail or not.
Eugene
On Jan 6, 3:45 pm, Gil <[email protected]> wrote:
Should the Webmail extension (with GMail - actually GAFYD) play nice
with S/MIME and digital signatures?
I have received some signed emails using the Webmail
extension, and
Thunderbird is telling me that the signature is not valid
(message has
been modified).
Other recipients of the same message report no problem
with the
signature - they do not use the Webmail extension but just basic
POP.
I can't try the same, as I am behind a corporate
firewall and cannot
use POP.
It does seems that I am able to receive some emails via
the Webmail
extension with valid signatures. Only one sender seems to be
affected
so far. It may be that senders using plaintext for their
messages are
not affected, but those who compose using HTML may have their
messages
corrupted (by the Webmail extension?).
I am using:
- TB 2.0.0.23
- WebMail 1.3.5
- WebMail - GMail 0.6.5b1
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