Help testing Exchange IMAP server search?

Help testing Exchange IMAP server search?

[Eric Abrahamsen]

Hey can someone(s) with an IMAP account on a Microsoft Exchange server,
who is running Emacs from master, help me test search capability?

I just pushed a change to gnus-search that will help improve search
handling for Exchange servers, but there's more work to do.

In a nutshell: Exchange advertises the LITERAL+ capability. But it only
accepts searches using the US-ASCII charset. Right now, if the code sees
a non-ascii search string, and the server has LITERAL+, it will encode
the string using the literal+ format and send CHARSET UTF-8, which
results in an error from Exchange.

The other option is to ignore Exchange's LITERAL+ capability, and put
double quotes around the non-ascii string. I don't know if that will
work or not, that's what I need help testing.

I'm hoping someone will:

1. Pull and build today's Emacs code.
2. Search an ascii-only string like "FROM eric" (it doesn't matter if
   you use the parsed queries or not) and verify it works.
3. Search a non-ascii string like "FROM Jérôme" (something that *should*
   return results!) and tell me what happens.
4. Eval the method definition below, and repeat both of the above tests.

Thanks in advance!

Eric


(cl-defmethod gnus-search-imap-handle-string ((engine gnus-search-imap)
					      (str string))
  (if (string-match-p "[^[:ascii:]]" str)
      (if (string-prefix-p "\"" str)
	  str
	(format "\"%s\"" str))
    str))

Re: Help testing Exchange IMAP server search?

[Alberto Luaces]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

> Hey can someone(s) with an IMAP account on a Microsoft Exchange server,
> who is running Emacs from master, help me test search capability?

How can I tell exactly if my organization is using Exchange?  I'm
currently using regular IMAP access, but maybe the email server can be
configured in several other ways. 

-- 
Alberto

Re: Help testing Exchange IMAP server search?

[Eric Abrahamsen]

Alberto Luaces <aluaces@udc.es> writes:

> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> Hey can someone(s) with an IMAP account on a Microsoft Exchange server,
>> who is running Emacs from master, help me test search capability?
>
> How can I tell exactly if my organization is using Exchange?  I'm
> currently using regular IMAP access, but maybe the email server can be
> configured in several other ways. 

The server address should have something Exchange-specific about it, tbh
I'm not sure! But I got some help off-list with this, and actually I
think I'm okay. The sad result was that Exchange simply doesn't support
searching in charsets other than ASCII :(

Re: Help testing Exchange IMAP server search?

[Andreas Schwab]

On Jun 03 2022, Alberto Luaces wrote:

> How can I tell exactly if my organization is using Exchange?

You can run "telnet HOST imap" or "gnutls-cli -p imaps HOST" and look at
the greeting.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

Re: Help testing Exchange IMAP server search?

[Alberto Luaces]

Andreas Schwab writes:

> On Jun 03 2022, Alberto Luaces wrote:
>
>> How can I tell exactly if my organization is using Exchange?
>
> You can run "telnet HOST imap" or "gnutls-cli -p imaps HOST" and look at
> the greeting.

That indeed works, thanks!

> * OK The Microsoft Exchange IMAP4 service is ready

-- 
Alberto