Inconsistent Message Delivery -- Hosted
Hello all,
This message is rather urgent as I am currently at a large event that is utilizing mailman for its communications.
The issue: users are sending messages to the lists, but not all users receive the message. There are not specific addresses affected, nor is it the same people that experience the issue every time. From what we can tell it is NOT a SPAM issue.
I am desperately trying to find a common denominator or a way to diagnose the issue. The settings are the same for all users and there are no exclusion options checked.
We are using a hosted option, so please keep that in mind.
Any help would be amazingly appreciated.
Warm Regards,
Charlene
Charlene Ruell
Program Assistant
Climate Action Network-International (CAN)
skype: charlene.ruell
<mailto:cruell@climatenetwork.org> cruell@climatenetwork.org
Peru Mobile +51 955 37 4801
<http://www.climatenetwork.org/> www.climatenetwork.org
<http://www.facebook.com/CANInternational> www.facebook.com/CANInternational
Twitter: @CANIntl
Subscribe to the ECO newsletter: <http://climatenetwork.org/eco-newsletters> http://climatenetwork.org/eco-newsletters
On 12/01/2014 08:51 PM, Charlene Ruell wrote:
These issues are almost never Mailman issues per se. You or the host need to check Mailman's bounce log for bounces and the outgoing MTA log to see if the messages are being accepted by the recipient's MX servers. If they are not being accepted, there may be enough info in the reject reasons to figure something out. If they are being accepted, there's probably not much you can do short term.
See the FAQ at <http://wiki.list.org/x/4oA9>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
Hi,
On 12/1/2014 8:51 PM, Charlene Ruell wrote:
Do the missing messages ever arrive? Bear in mind that by it's nature, email isn't a real-time medium; it's common for list messages to take hours to arrive, depending on the size of the list, the load of the sending server, and the load of each of the receiving servers ("I'm busy, try again later").
Pleas give us some more detail about the size of the lists and how long messages take to arrive (the ones that do).
z!
Thanks for the responses! I will see if I can get access to the log.
Carl, it is very strange, as there isn't anything in common among the users reporting issues. The feedback that I am getting is that there are no delays (this has been my experience as well) the messages just never arrive (though they are in the archive). What adds to the mystery is it is not consistent. Yesterday, several of my users reported receiving some messages from a list, but not others. I've asked for feedback to get a better handle on what the common denominator might be. In my thinking, if users are receiving some messages it is not a filter or spam issue, otherwise ALL messages would be stopped. Correct?
The lists are all roughly 75 users. The biggest is 150.
Thanks so much! Myself and my organization VERY much appreciate your help.
Charlene Ruell Program Assistant Climate Action Network-International (CAN) skype: charlene.ruell cruell@climatenetwork.org Peru Mobile +51 955 37 4801
www.climatenetwork.org www.facebook.com/CANInternational Twitter: @CANIntl Subscribe to the ECO newsletter: http://climatenetwork.org/eco-newsletters
-----Original Message----- From: Carl Zwanzig [mailto:cpz@tuunq.com] Sent: 02 December 2014 1:11 PM To: mailman-users@python.org; cruell@climatenetwork.org Subject: Re: [Mailman-Users] Inconsistent Message Delivery -- Hosted
Hi,
On 12/1/2014 8:51 PM, Charlene Ruell wrote:
Do the missing messages ever arrive? Bear in mind that by it's nature, email isn't a real-time medium; it's common for list messages to take hours to arrive, depending on the size of the list, the load of the sending server, and the load of each of the receiving servers ("I'm busy, try again later").
Pleas give us some more detail about the size of the lists and how long messages take to arrive (the ones that do).
z!
On 12/02/2014 05:15 PM, Charlene Ruell wrote:
No. ISPs reject, file as spam or silently discard messages based on criteria that only the individual ISPs understand completely and they won't reveal their methods because they think it aids spammers.
Even if they are blocking a sending server by IP, that might not apply to all list mail if the host has multiple outgoing servers.
Note that if the undelivered posts are all From: aol.com and/or yahoo.com, it may be a DMARC issue. See <http://wiki.list.org/display/DEV/DMARC> and <http://wiki.list.org/x/ggARAQ>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
On 12/01/2014 08:51 PM, Charlene Ruell wrote:
These issues are almost never Mailman issues per se. You or the host need to check Mailman's bounce log for bounces and the outgoing MTA log to see if the messages are being accepted by the recipient's MX servers. If they are not being accepted, there may be enough info in the reject reasons to figure something out. If they are being accepted, there's probably not much you can do short term.
See the FAQ at <http://wiki.list.org/x/4oA9>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
Hi,
On 12/1/2014 8:51 PM, Charlene Ruell wrote:
Do the missing messages ever arrive? Bear in mind that by it's nature, email isn't a real-time medium; it's common for list messages to take hours to arrive, depending on the size of the list, the load of the sending server, and the load of each of the receiving servers ("I'm busy, try again later").
Pleas give us some more detail about the size of the lists and how long messages take to arrive (the ones that do).
z!
Thanks for the responses! I will see if I can get access to the log.
Carl, it is very strange, as there isn't anything in common among the users reporting issues. The feedback that I am getting is that there are no delays (this has been my experience as well) the messages just never arrive (though they are in the archive). What adds to the mystery is it is not consistent. Yesterday, several of my users reported receiving some messages from a list, but not others. I've asked for feedback to get a better handle on what the common denominator might be. In my thinking, if users are receiving some messages it is not a filter or spam issue, otherwise ALL messages would be stopped. Correct?
The lists are all roughly 75 users. The biggest is 150.
Thanks so much! Myself and my organization VERY much appreciate your help.
Charlene Ruell Program Assistant Climate Action Network-International (CAN) skype: charlene.ruell cruell@climatenetwork.org Peru Mobile +51 955 37 4801
www.climatenetwork.org www.facebook.com/CANInternational Twitter: @CANIntl Subscribe to the ECO newsletter: http://climatenetwork.org/eco-newsletters
-----Original Message----- From: Carl Zwanzig [mailto:cpz@tuunq.com] Sent: 02 December 2014 1:11 PM To: mailman-users@python.org; cruell@climatenetwork.org Subject: Re: [Mailman-Users] Inconsistent Message Delivery -- Hosted
Hi,
On 12/1/2014 8:51 PM, Charlene Ruell wrote:
Do the missing messages ever arrive? Bear in mind that by it's nature, email isn't a real-time medium; it's common for list messages to take hours to arrive, depending on the size of the list, the load of the sending server, and the load of each of the receiving servers ("I'm busy, try again later").
Pleas give us some more detail about the size of the lists and how long messages take to arrive (the ones that do).
z!
On 12/02/2014 05:15 PM, Charlene Ruell wrote:
No. ISPs reject, file as spam or silently discard messages based on criteria that only the individual ISPs understand completely and they won't reveal their methods because they think it aids spammers.
Even if they are blocking a sending server by IP, that might not apply to all list mail if the host has multiple outgoing servers.
Note that if the undelivered posts are all From: aol.com and/or yahoo.com, it may be a DMARC issue. See <http://wiki.list.org/display/DEV/DMARC> and <http://wiki.list.org/x/ggARAQ>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (3)
-
Carl Zwanzig -
Charlene Ruell -
Mark Sapiro