D. Alan Stewart wrote:
This list is provided to me by my web hosting provider, who is also
baffled. The Mailman installation is version 2.1.5. The sendmail logs
show successful transmissions to the users in question, at the
correct time, so it appears Mailman is sending something, but the
receiving end must be discarding it. I'm one of those not receiving
the emails. I've contacted my mail provider, mac.com, but they want a
copy of the email being sent with complete headers. Since any new
subscribers I've added aren't getting emails I'm having trouble doing
this.
If the sendmail log says the post is sent to the user in question, Mailman delivered it to sendmail for the user, and it's not Mailman's problem.
Here are things you can check.
Mailman's 'smtp' log. This will tell you how many recipients the post was sent to.
Also check if the list is personalized. You may not even have personalization options on your Non-digest options page which means that OWNERS_CAN_ENABLE_PERSONALIZATION is not set to Yes in mm_cfg.py and delivery is almost certainly not personailzed.
Check the settings of VERP_DELIVERY_INTERVAL and SMTP_MAX_RCPTS if any in mm_cfg.py
If the list is not personalized and delivery is not 'VERP like' because VERP_DELIVERY_INTERVAL has its default value of 0, and SMTP_MAX_RCPTS has its default value of 500, then all 100 or less recipients receive the identical message sent by Mailman in the same SMTP transaction (with each recipient specified in a RCPT TO command).
You should also see this in the sendmail log, i.e. that the mail was delivered to sendmail in one transaction.
Thus, if you can get copy of a received post from anyone, all the initial headers (those that aren't Received: headers added by MTA's outbound of your sendmail or other headers added by MDA's or receiving MUA's) will be identical to those of the missing deliveries.
We set up a test list. I've found that the test list works if I
subscribe only myself. However, if I mass subscribe all the
subscribers of the malfunctioning list to the test list, it appears
to behave in the same manner as the malfunctioning list. That seems
to imply that it is either the number of subscribers or that one bad
entry in the list is creating the problem. It can't be the number of
subscribers, there are other, bigger Mailman lists on this same host
that seem to be working correctly.
Can you add yourself to one of these lists?
There are less than 100
subscribers to my list. In examining the list that I am subscribing I
can find no entries that appear malformed.Does anyone have any suggestions?
Sendmail claims it sent the mail to the users who didn't get it. I recognize the symptoms say that Mailman is somehow involved, but I don't see how.
-- Mark Sapiro <msapiro@value.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan