[Mailman-Users] Erratic mail delivery times

Conrad G T Yoder cgtyoder at alum.mit.edu
Mon Jul 21 01:11:29 CEST 2014


Always beware when businesses attempt to describe their competitor’s products.

That’s pretty disingenuous of you, Brian.  On that page you mention, it plainly says:

> Discussion Lists (created via our control panel): unlimited recipients per hour
> 
> • Max recipients per message: unlimited
> • Max message size: 40MB (encoded); individual list may set a lower limit

I myself admin several mailing lists with them, one with 7800+ members, with roughly 14 messages/day.  That’s on the order of
100K emails/day.  I have never had any issues with DH throttling the outgoing messages from my lists.  (I do have problems with the likes of Roadrunner/Time Warner having irresponsible reception policies so that their email users are constantly getting subscriptions disabled, but that’s another story).

Dreamhost is definitely not perfect, but this is not one of the problem areas.

(They are now running MM 2.1.17, as of a couple months ago.)

-Conrad



On Jul 20, 2014, at 5:49 PM, Brian Carpenter <brian at emwd.com> wrote:

> Dreamhost also throttles their SMTP servers:
> 
> http://wiki.dreamhost.com/SMTP_quota
> 
> By not keeping their Mailman installation up to date is also VERY
> problematic since certain ISPs' DMARC policies impacts mailing lists
> everywhere. If you were serious about your mailing list(s), I would not use
> them. Using us on the other hand makes a lot of sense. :^)
> 
> http://www.mailmanhost.com
> 
> Brian Carpenter
> EMWD.com
> 
> Providing Cloud Services and more for over 15 years.
> 
> T: 336.755.0685
> E: brian at emwd.com
> www.emwd.com
> 
>> No, it's all hosted via cpanel. Does this mail per hour limit seem odd with that
>> sort of setup?
>> 
>> Does dreamhost keep their mailman up to date? We're still on 2.1.15, and
>> when I asked about upgrading, they wouldn't commit to any date, only that it
>> would be more likely to be months than a month.
>> 
>> Peter Shute
>> 
>> Sent from my iPad
>> 
>>> On 21 Jul 2014, at 1:35 am, "Dave Nathanson" <dave.lists at nathanson.org> wrote:
>>> 
>>> I'm surprised that any web/email host would apply a rule intended for a
>> personal email account to a listserve. I'm guessing that you are running
>> MailMan on your own computer, then using mail server provided by your
>> email hosting company to send the messages. So to the email host, you do
>> look like a very busy personal account.
>>> 
>>> As I see it, your options include:
>>> 
>>> * Discuss this limitation with your email host & see if they will waive the
>> message sending cap for your listserv.
>>> * Use a mailman installation hosted by your email hosting company, which
>> is not subject to a message sending cap.
>>> * Changing email hosts & using a mailman installation hosted by your email
>> hosting company, which is not subject to a message sending cap.
>>> 
>>> No need to change registrars. NameCheap is a good registrar, better than
>> many. I haven't used their web/email hosting.
>>> 
>>> My email lists are all running on Mailman provided by my email host. You
>> don't even need to install it, just choose a dedicated subdomain for it to run
>> on. They do NOT limit message flow from Mailman, although they do limit
>> the number of messages per hour sent from a personal mail account. No
>> web/email host is perfect, but I'm pretty happy with DreamHost. Especially
>> for about $100 a year for more services than I can possibly use. (And I'm
>> giving it a good go!).
>>> 
>>> Here is a Dreamhost Coupon code & link that will give you $10 off now, plus
>> 1 free LIFETIME domain registration. So that's a savings of about $11 a year
>> for life. MACMEDIXFREEDOM  What else is included? Tons! Check it out.
>>> http://www.dreamhost.com/r.cgi?250640/hosting.html
>>> 
>>> Best,
>>> Dave Nathanson
>>> Mac Medix
>>> 
>>>> On Jul 20, 2014, at 4:38 AM, Russell Woodford <rdwoodford at gmail.com> wrote:
>>>> 
>>>> Hi Peter, Mark and all
>>>> 
>>>> I think I may have the solution now (Peter is one of our list moderators).
>>>> My web host is now telling me that there is a 200 emails per hour limit for
>>>> my hosting plan. We have 1140 subscribers. That means we blow the limit out
>>>> of the water EVERY time someone posts!
>>>> 
>>>> I'm not sure why they have taken so long to tell me this, as we've been
>>>> running on this host for over 7 months, but it seems they throttle the
>>>> outgoing mail volume, so it can take a while for all those recipients to
>>>> get each message. I suppose it depends on overall server activity - if
>>>> nothing else is happening, then maybe a new message does get straight to
>>>> 1140 recipients.
>>>> 
>>>> Looks like we will need to shift to a new listserver and maybe even a new
>>>> webhost - and maybe even a new domain registrar (I've had all my eggs in
>>>> the Namecheap basket for some years now).  Somehow I don't think I am going
>>>> to get away with this volume of mail for the $50 a year I'm currently
>>>> paying :-(
>>>> 
>>>> Russell Woodford
>>>> Geelong, Australia
>>>> birding-aus.org
>>>> 
>>>> 
>>>>> On 18 July 2014 11:20, Mark Sapiro <mark at msapiro.net> wrote:
>>>>> 
>>>>>> On 07/17/2014 05:01 PM, Peter Shute wrote:
>>>>>> 
>>>>>> I've now enabled protocol logging on our Exchange server, a new world
>>>>> for me. I can see several possibly relevant events in yesterday's logs that
>>>>> look like this:
>>>>>> 2014-07-17T07:02:03.914Z,NUWVICMS2\Default NUWVICMS2,08D145520008BC68,24,
>>>>> 192.168.0.36:25,192.64.112.70:38732,>,550 5.7.1 Requested action not
>>>>> taken: message refused,
>>>>> 
>>>>> 
>>>>> This is a 550 (extended 5.7.,1) status which is a permanent failure.
>>>>> This is a bounce and will (should) not be retried by the sending server.
>>>>> 
>>>>> I doubt that this specific log message has anything to do with your
>>>>> delayed messages.
>>>>> 
>>>>> 
>>>>>> But if the antispam software is refusing the messages, how do they
>>>>> eventually get through?
>>>>> 
>>>>> 
>>>>> Exactly.
>>>>> 
>>>>> You could look at the logs on the 192.64.112.70 sending server to see
>>>>> what that server did with this message after it was bounced by the
>>>>> exchange server.
>>>>> 
>>>>> If the Mailman server is sending directly to the exchange server and
>>>>> that is where the delays are occurring, you need to look at the MTA logs
>>>>> of the Mailman server and see what's there relevant to sending failures
>>>>> and resends.
>>>>> 
>>>>> But, this thread no longer has anything to do with Mailman. Perhaps you
>>>>> could find another list/forum to discuss this that might be able to
>>>>> provide more expertise in this area.
>>>>> 
>>>>> --

--
Eternal vigilance is the price of prosperity.



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