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Maniphest T3975

Special characters not displayed anymore in Outlook
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Description

Special characters as umlauts (i.e. ä ö ü) in signed and sent emails do not get displayed anymore in Outlook. The characters are simply left out within the words, no space, just as if I didn't type them. However, when I open the sent email using my webmail provider there are no missing letters. So it is only a display problem in Outlook; the email itself seems to be unaffected.

It worked flawlessly before, it seems the bug appeared in GpgOL version 2.1.0 or one before.

The bug appears when I open a signed and sent email in Outook's Sent-folder. It affects both the email preview in Outlook as well as regular email window.

Odd enough, when I write a new mail and choose to sign it and finally send it, it is sent but Outlook then clears the text window (as if I didn't type a single letter). I can simply close the window manually and the email is sent. But that's a strange behaviour, maybe related to the bug above.

Details

Version
Gpg4win 3.1.1, GpgOL 2.1.1, MS Outlook 2013 x64 (15.0.5031.1000) on Win 10 Pro b16299 x64

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Event Timeline

baluui created this task.May 11 2018, 9:12 PM
baluui updated the task description. (Show Details)
• werner added a project: gpgol.May 18 2018, 11:28 AM
aheinecke claimed this task.May 22 2018, 9:18 AM
aheinecke triaged this task as Normal priority.
aheinecke added a subscriber: aheinecke.

Thanks for your report.

Do you have the Option to send PGP/Inline set?

We added support for PGP/Inline signing with GpgOL 2.1.0 which is notoriously problematic regarding encoding. So if you send PGP/Inline that would explain the change in behavior.

But it should work at least in your own client, of course.

baluui added a comment.May 23 2018, 9:53 PM

Thank you for your answer.

I unticked the inline setting in gpgOL and yeah, it helped. Thank you! I would not have found it on my own.

What is the purpose/advantage of this setting if ticked?

aheinecke added a comment.May 24 2018, 8:12 AM

The best way to send signed or encrypted mail is by using PGP/MIME which is the default.

The Inline setting is there because some people always request it as they somehow communicate with others that can't handle MIME. So it's a kind of compatibility option.

What did you think that the Option did when you selected it?
Maybe we need to rephrase the Option to avoid confusion.

aheinecke changed the task status from Open to Testing.Jun 1 2018, 2:32 PM
aheinecke mentioned this in T3962: GpgOL: Switch to external resolver when encryption with internal resolution fails.

I've noticed during testing that GpgOL would not send valid PGP/Inline signed only messages and also failed to verify such messages itself when special characters were in the mix.

It is improved somewhat by the following commits:

rOfc05ec082038
rO5f31ee9b15b3
rOf46586d886cd

Still not super reliable but for good encoding support users need to use PGP/MIME.

aheinecke added a parent task: T3925: Gpg4win 3.1.2.Jun 1 2018, 2:34 PM
aheinecke closed this task as Resolved.Jun 18 2018, 4:03 PM

Fix is released in Gpg4win-3.1.2