Harald, I sent the first message just after registering with the group and didn't receive a copy of it. I thought it hadn't gone through, but thank you for your helpful response.
Thank you, Joel Roberts Network Administrator -----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Reindl Harald Sent: Thursday, October 13, 2011 4:12 PM To: postfix-users@postfix.org Subject: Re: Attachment Limit Size what exactly do you think get better if you send the same message with a changed subject to the same mailing-list two days later? Am 14.10.2011 00:08, schrieb Joel Roberts: > Hi all, new to the group. Have recently setup POSTFIX as an SMTP relay > front end to an Exchange 2007 backend. Have encountered the following issue: > > I'm using POSTFIX as an SMTP fronted relay to an Exchange > <http://www.tek-tips.com/viewthread.cfm?qid=1663396&page=1> 2007 > backend. The default size for attachments in POSTFIX is 10 MB. I've > set that in the configuration file to be 20 MB. When I look at > postconf -n it verifies that the limit is set to 20 MB, > (message_size_limit = 20480000). I've stopped and restarted the > postfix service, but messages are still bounced back to my Exchange > server <http://www.tek-tips.com/viewthread.cfm?qid=1663396&page=1> > as undeliverable if they exceed 10 MB in size.) The bounce-back > message users receive lists the Debian Linux / Postfix server as the server > bouncing it back for exceeding size. Is there somewhere else this needs to be > set? > > The error message I get from exchange is: > > This message exceeds the maximum message size allowed. Microsoft > Exchange will not try to redeliver this message for you. Please make > the message smaller -- by removing attachments, for example -- and try > sending it again, or provide the following diagnostic text to your system > administrator. > > The following organization rejected your message: > {POSTFIX_SERVER.OUR_DOMAIN.com. -------- Original-Nachricht -------- Betreff: Attachments over 10MB Undeliverable Datum: Wed, 12 Oct 2011 08:59:22 -0600 Von: Joel Roberts <joel.robe...@pinkardcc.com> An: postfix-us...@cloud9.net <postfix-us...@cloud9.net> Hi all, new to the group. Have recently setup POSTFIX as an SMTP relay front end to an Exchange 2007 backend. Have encountered the following issue: I'm using POSTFIX as an SMTP fronted relay to an Exchange <http://www.tek-tips.com/viewthread.cfm?qid=1663396&page=1> 2007 backend. The default size for attachments in POSTFIX is 10 MB. I've set that in the configuration file to be 20 MB. When I look at postconf -n it verifies that the limit is set to 20 MB, (message_size_limit = 20480000). I've stopped and restarted the postfix service, but messages are still bounced back to my Exchange server <http://www.tek-tips.com/viewthread.cfm?qid=1663396&page=1> as undeliverable if they exceed 10 MB in size.) The bounce-back message users receive lists the Debian Linux / Postfix server as the server bouncing it back for exceeding size. Is there somewhere else this needs to be set? The error message I get from exchange is: This message exceeds the maximum message size allowed. Microsoft Exchange will not try to redeliver this message for you. Please make the message smaller -- by removing attachments, for example -- and try sending it again, or provide the following diagnostic text to your system administrator. The following organization rejected your message: {POSTFIX_SERVER.OUR_DOMAIN.com.