[Wylug-help] Illegal characters in email addresses.

[Simon Wood]

Hi all,
I came across an email with a "'" in it.

Looking at RFC2822 it appears to be legal, but when replying to it exim4 kicks up the following error:
---
* Connecting to SMTP server: localhost ...
[18:48:53] SMTP< 220 slone.mungewell.org ESMTP Exim 4.50 Mon, 06 Jun 2005 18:48:53 -0600
[18:48:53] SMTP> HELO slone.mungewell.org
[18:48:53] SMTP< 250 slone.mungewell.org Hello localhost [127.0.0.1]
[18:48:53] SMTP> MAIL FROM:<simon at mungewell.org>
[18:48:53] SMTP< 250 OK
[18:48:53] SMTP> RCPT TO:<simon'stest at localhost>
[18:48:53] SMTP< 550 restricted characters in address
** error occurred on SMTP session
** Error occurred while sending the message.
---

What's even more confusing is that it has already passed through exim4 on the inward journey, see log:
---
2005-06-06 16:36:00 1DfQCO-0000TJ-3F <= Catherine_O'Brien at opusframing.ca H=localhost (mungewell.org) [127.0.0.1] P=esmtp
S=1654 id=fc.000f7cf20013ddad3b9aca009cd41b91.13ddb5 at opusframing.ca 2005-06-06 16:36:00 1DfQCO-0000TJ-3F => kriszi <krisztina at mungewell.org> R=local_user T=mail_spool
2005-06-06 16:36:00 1DfQCO-0000TJ-3F Completed
---
and then:
---
2005-06-06 17:57:51 H=localhost (slone.mungewell.org) [127.0.0.1] F=<krisztina at mungewell.org> rejected RCPT <Catherine_O'Brien at opusf
raming.ca>: restricted characters in address
2005-06-06 17:57:58 unexpected disconnection while reading SMTP command from localhost (slone.mungewell.org) [127.0.0.1]
---

Can anyone confirm whether "'" is/is not legal before I file a bug report.

Thanks,
Simon.