Postfix 2.6.5 address rewiting: removing invalid characters from email addresses
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From: Noel Jones on 16 Apr 2010 11:05 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 ":user(a)domain.com" to "user(a)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:organizer(a)exchangeuser.com > ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=:MAILTO:bernd(a)zimbrauser.com > ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=:MAILTO:otherguy(a)zimbrauser.com > > The bug is, that when accepting/declining the calender, the email > parsing is wrong and wants to send an email to > :organizer(a)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. |