MBOX-Line: From nicolson at google.com Fri Jul 17 10:01:12 2015 To: imap-protocol@u.washington.edu From: Jamie Nicolson Date: Fri Jun 8 12:34:55 2018 Subject: [Imap-protocol] Duplicate mail detection criteria In-Reply-To: References: Message-ID: We had to add a hack to allow attachment stripping by IMAP clients, since our default duplicate detector would always discard the stripped version as a duplicate. For IMAP appends, we consider the messages different (not duplicates) if the MIME structure changes or any MIME part's size increases or decreases by more than 50%. The 50% number is somewhat arbitrary but was inserted to allow for conversion between CRLF and LF line endings. This might not be necessary anymore, due to some internal implementation changes, so we could investigate making it more strict. On Fri, Jul 17, 2015 at 5:03 AM, yuganya wrote: > Am using imap in thunderbird. When i delete large attachment, gmail > detects it and syncing it with web. When i delete a small attachment (500 > bytes) , It not syncing with web. > On analysing further, When deleting large attachment there is a drastic > change in size and gmail accepts it as new message. but while deleting a > small attachment,gmail detects it as duplicate and ignores it. > > so what is the criteria gmail using for duplicate detection. > > _______________________________________________ > Imap-protocol mailing list > Imap-protocol@u.washington.edu > http://mailman13.u.washington.edu/mailman/listinfo/imap-protocol > -------------- next part -------------- An HTML attachment was scrubbed... URL: