Hello all, Thanks for your responses and sorry couldn't answer promptly yesterday due o some obligations away from the server room. 1. It can't be message size limit., 10240000 bytes =10MB and that is way beyond 1MB!!
[more comments inline] On Monday 14 November 2005 14:37, Kenneth Kabagambe wrote: > i. what do you mean by "uplink usage" ? is this smtp traffic measured > outbound from your server or router I meant all the traffic combined. What I did was to limit smtp traffic alone to a maximum of 48kbps(my link total is 128kbps, so I feel that was quite generous:-) ). The limiting of the SMTP normalised the situation. > looks to me like you need to do rate limiting in postfix itself. if > you can also post the "smtp" line from master.cf > it would help. also see http://www.postfix.org/rate.html Will get back to you on this, let me do the reading first. > ii. could the failure be due to throttling at your gateway, and not > allowing the message processing to be completed? No. The behavior is the same with or without the throttling. The problem is within Postfix!! > how are you > throttling? Gateway is running ClarkConnect and has a webinterface for bandwidth management. > do you experience the same behaviour when sending internal > mail? No. Internal mail is very smooth. No problem whatsoever > iii.what version of postfix are you running? Postfix-2.2.1 But sincerely how can postfix deliver attachments of a particular size internally and fail to deliver the same size outside!! Baffling! > > Lule George William wrote: > >Dear all, > >Since I deployed my postfix server two weeks ago (after getting rid of > > good ol' sendmail), it has two problems that I have failed to sort out. > > 1. From the time it got online, my uplink usage shot straight up to > > 100%!! Before it used to hover between 40-70%. After monitoring it for a > > few days and determining that this wasn't due to increased activity from > > my users, I throttled it at the gateway. However, I am still interested > > to know why it did it that way. > >2. It has refused to send mails with attachments beyond 1 MB to any > >destination. > >Machine is running SuSE Linux 9.3. Some more info > >================================================================= > >postmaster1:~ # uname -a > >Linux postmaster1 2.6.11.4-20a-default #1 Wed Mar 23 21:52:37 UTC 2005 > > i686 i686 i386 GNU/Linux > >================================================================== > > > >An example of an entry from /var/log/mail > >================================================================== > >Nov 14 06:03:18 postmaster1 postfix/smtp[5968]: E5CAE77F1D: > >to=<[EMAIL PROTECTED]>, relay=mx2.mail.yahoo.com[67.28.114.35], > > delay=386525, status=deferred (conversation with > > mx2.mail.yahoo.com[67.28.114.35] timed out while sending message body) > >Nov 14 06:03:24 postmaster1 postfix/smtp[5950]: 65B251CB31: > >to=<[EMAIL PROTECTED]>, relay=mx2.mail.ukl.yahoo.com[217.12.11.64], > >delay=239985, status=deferred (lost connection with > >mx2.mail.ukl.yahoo.com[217.12.11.64] while sending message body) > >Nov 14 06:04:00 postmaster1 postfix/smtp[5957]: AC41378495: > >to=<[EMAIL PROTECTED]>, orig_to=<xxxxx>, > >relay=gsmtp83.google.com[66.249.83.27], delay=217864, status=deferred > >(conversation with gsmtp83.google.com[66.249.83.27] timed out while > > sending message body) > >Nov 14 06:04:07 postmaster1 postfix/smtp[5934]: 2DF1C44A11: > >to=<[EMAIL PROTECTED]>, relay=mx2.mail.yahoo.com[67.28.114.35], > > delay=216324, status=deferred (lost connection with > > mx2.mail.yahoo.com[67.28.114.35] while sending message body) > >Nov 14 06:04:08 postmaster1 postfix/smtp[5504]: F06337809D: > > to=<[EMAIL PROTECTED]>, relay=mx12.un.org[157.150.184.102], delay=250343, > > status=deferred (conversation with mx12.un.org[157.150.184.102] timed out > > while sending message body) > >Nov 14 06:04:22 postmaster1 postfix/smtp[5955]: 92F7F781C1: > > to=<[EMAIL PROTECTED]>, relay=in1.smtp.messagingengine.com[66.111.4.71], > > delay=418224, > >status=deferred (conversation with > > in1.smtp.messagingengine.com[66.111.4.71] timed out while sending message > > body) > >=================================================================== > > > >And the output of postconf > >===================================================================== > >postmaster1:~ # postconf -n > >alias_maps = hash:/etc/aliases > >biff = no > >canonical_maps = hash:/etc/postfix/canonical > >command_directory = /usr/sbin > >config_directory = /etc/postfix > >daemon_directory = /usr/lib/postfix > >debug_peer_level = 2 > >defer_transports = > >disable_dns_lookups = no > >header_checks = regexp:/etc/postfix/header_checks > >html_directory = /usr/share/doc/packages/postfix/html > >inet_interfaces = 127.0.0.1 172.16.22.30 ::1 > >inet_protocols = all > >mail_owner = postfix > >mail_spool_directory = /var/mail > >mailbox_command = > >mailbox_size_limit = 0 > >mailbox_transport = > >mailq_path = /usr/bin/mailq > >manpage_directory = /usr/share/man > >masquerade_classes = envelope_sender, header_sender, header_recipient > >masquerade_domains = > >masquerade_exceptions = root > >message_size_limit = 10240000 > >mydestination = $myhostname, $mydomain, localhost.$mydomain > >mydomain = umu.ac.ug > >myhostname = postmaster1.umu.ac.ug > >mynetworks = 127.0.0.0/8 > >myorigin = umu.ac.ug > >newaliases_path = /usr/bin/newaliases > >queue_directory = /var/spool/postfix > >readme_directory = /usr/share/doc/packages/postfix/README_FILES > >relayhost = > >relocated_maps = hash:/etc/postfix/relocated > >sample_directory = /usr/share/doc/packages/postfix/samples > >sender_canonical_maps = hash:/etc/postfix/sender_canonical > >sendmail_path = /usr/sbin/sendmail > >setgid_group = maildrop > >smtp_sasl_auth_enable = no > >smtp_use_tls = no > >smtpd_client_restrictions = > >smtpd_helo_required = no > >smtpd_helo_restrictions = > >smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination > >smtpd_sasl_auth_enable = no > >smtpd_sender_restrictions = hash:/etc/postfix/access > >smtpd_use_tls = no > >strict_rfc821_envelopes = no > >transport_maps = hash:/etc/postfix/transport > >unknown_local_recipient_reject_code = 450 > >========================================================================== > >======== I've googled and there are a number of references to this > > problem, but non has helped me. > >Sorry for the long post. I will appreciate any help thrown my way. > >Thank you all. -- ************************************************************************ Lule George William (Mr) Network and Systems Administrator Uganda Martyrs University, Nkozi P.O. Box 5498 Kampala Uganda /* The only reason some people are alive is because it is illegal to shoot them */ _______________________________________________ LUG mailing list [email protected] http://kym.net/mailman/listinfo/lug %LUG is generously hosted by INFOCOM http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The List's Host is not responsible for them in any way. ---------------------------------------
