Trigve Siver a écrit : > Hi, > thanks for reply > >> This is suspicious. sendmail doesn't return an error to getmail, so >> getmail should think the message was processed. in short, there should >> be no "next round". > > As you can see in getmail configuration getmail is calling sendmail. AFAIK if > postfix reject the mail (because of too large) sendmail returns error code > and so getmail don't delete the mail from ISP and do nothing. > >> since the message was already accepted by one of your servers, it is too >> late to generate a bounce, because this will cause backscatter (if the >> sender is forged). >> >> in short, you need to accept such messages since your ISP/MSP accept them. > > Yes but my ISP will accept also big messages and I don't want to process > messages bigger than 10 MB for instance. Yes the backscatter could be problem > but now I have problem that mails bigger than 10 MB will stay on ISP server > forever and I can do nothing about it (I can delete it from ISP webmail > interface but thi is not a rela solution). >
what you could do is run a script that - checks the message size. if it's too large, store it somewhere for review - else, run sendmail in any case, don't bounce without some sort of verification (some anti-spam checks or a manual review). If you are willing to do more scripting, consider putting the large messages on a web server and letting the user get them there. this needs some work (create random URL, notify user, ... purge after some time, ...).
