Email header empty reference, reply stuck in loop Fri, 10 Apr 2026 07:55:29 +0000 https://bugs.horde.org/ticket/12014 Email header empty reference, reply stuck in loop Lets say you received an Email with such "References:" in em Lets say you received an Email with such "References:" in email header. References: <BLU169-W112C281DA04605C40EC93FABC940@phx.gbl> <>,<1349396219.3673.163.camel@mercier.safe.ca> <Y>,<BLU169-W5681718F894FC1CBBA8105BC890@phx.gbl>, <1350933769.5285.7.camel@mercier.safe.ca>, <BLU169-W115DDFCFBD949636AD1E935BC790@phx.gbl>, <1353986975.3308.80.camel@mercier.safe.ca>, <BLU169-W43B688FAFDAC2C748B6C7BBC5E0@phx.gbl>, <1355244456.1861.53.camel@mercier.safe.ca>, <BLU169-W131E28ACA18987DA779A9C1BC480@phx.gbl>, <20130106130818.Horde.cpjogXqOCUU9UNcTZI4nUA1@nestor.safe.ca>,<DUB119-W6218EA6660179D438D5D1BC260@phx.gbl>,<20130203145453.Horde.FzTELM1OVgSI2LRAA__5uA2@nestor.safe.ca> If you ask to reply to those email, IMP (6.0.3) consume all PHP allowed memory but never succeed to present the email to be edited before replying. Critical factor is an "empty" reference "<>", within the received Refences collection. Original Email causing trouble was posted from Hotmail server. Mon, 04 Feb 2013 03:01:12 +0000 https://bugs.horde.org/ticket/12014#t76550 Ticket #11953 Ticket #11953 Mon, 04 Feb 2013 06:21:00 +0000 https://bugs.horde.org/ticket/12014#t76551