Environment: # Postfix 2.0.11: main.cf recipient_delimiter = - owner_request_special = no

# Mailman 2.1.2: mm_cfg.py
VERP_FORMAT = '%(bounces)s-%(mailbox)s=%(host)s'
VERP_REGEXP = r'^(?P<bounces>[^-]+?)-(?P<mailbox>[^=]+)=(?P<host>[^@]+)@.*$'
VERP_PASSWORD_REMINDERS = Yes
VERP_PERSONALIZED_DELIVERIES = Yes
VERP_DELIVERY_INTERVAL = 1
VERP_CONFIRM_FORMAT = '%(addr)s-%(cookie)s'
VERP_CONFIRM_REGEXP = r'^(?P<addr>[^-]+?)-(?P<cookie>[^@]+)@.*$'
VERP_CONFIRMATIONS = Yes

Problem: Lists such as foo-announce or foo-users don't VERP properly. My guess is that the VERP regex is not handling the embedded dashes properly. I'm sure I'm not the only person who uses "-" as a recipient delimiter; is there a good regex for use with this configuration?

-- Todd's "Customer Disservice Hall of Shame" currently contains: - Charter Communications: Mislead their customers about service levels, block normal Internet connectivity, and exhibit excessive downtime. - AT&T: Honoring the "checks" they send out to entice you to switch long-distance providers is apparently optional. - eFax: Receive (not send) 20 pages of *unsolicited* faxes, and lose your account.