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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