On 4/16/2010 8:59 AM, Bernd Nies wrote:
Hi,
Is it possible to rewrite an email address that contains invalid characters?
Example: Rewrite ":u...@domain.com" to "u...@domain.com" -- stripping
of the leading ":" (colon).
I read through the Postfix Address Rewriting README [1] but did not
find a hint. Source routing looks close but that's not it. Using
header_checks [2] with REDIRECT is also not very useful because I have
to create such an entry for every possible email address.
Background info: We're currently having a problem with Zimbra
Collaboration suite 6.0.5 and Thunderbird Lightning 1.0b1. Calendar
invitations from a customer contain an empty CN= field in the
organizer and attendee fields as follows:
ORGANIZER;CN=:MAILTO:organi...@exchangeuser.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=:MAILTO:be...@zimbrauser.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=:MAILTO:other...@zimbrauser.com
The bug is, that when accepting/declining the calender, the email
parsing is wrong and wants to send an email to
:organi...@exchangeuser.com (yes, with the leading colon). This email
address is rejected on the customer's email server. I thought about
using Postfix on our outbound SMTP gateway for stripping off the
leading ":" from the destination address.
The correct solution is to fix the broken sending software, or
find a configuration that doesn't send invalid data.
You can fix this in postfix with smtp_generic_maps. This
requires postfix 2.7 or newer.
http://www.postfix.org/postconf.5.html#smtp_generic_maps
Your regexp map would look something like:
/^:(.*)$/ $1
Caution: no telling what else this might break.
