[AusNOG] Straw poll: what is your email message size limit?

Jeffrey Sims jeffy at tehintartubes.net
Tue Mar 26 12:33:16 EST 2013

The experience I have seen at a large top 4 professional services firm, is
that staff will call or log a support call with

"I sent an email to XXX and they claim they never got it, and I never got a
bounce back" and after wasting time scanning the history of email
transactions to find the needle in a hey stack, and telling the client "our
system processed it out and that's as much as we know" leaves a sour taste.

I think the majority of internet connectivity has been 10-20mb but never
bigger than 20mb otherwise you really start to put too much through a
medium that wasn't designed to handle large transactions. (I have seen
people internally send 100+mb emails).

On Tue, Mar 26, 2013 at 12:30 PM, Joseph Goldman <joe at apcs.com.au> wrote:

>  What is the point of raising it?
> I've had a server with larger then 10mb size limit on it before, but it
> started generating support calls as the receiving end would be bouncing
> back (or worse yet, discarding the message). Are you taking these support
> calls on the chin as they occur? My thought on the process would be you'd
> need an 'internet wide' support and change-over at a single point in time
> to have it work perfectly.
> I'm talking about remove delivery exclusively, obviously if they are
> sending between servers you own only, then it'd be much easier to manage.
> On 26/03/13 12:23 PM, Robert Hudson wrote:
> Currently 10MB, moving to 25MB shortly.
> Mailbox size limits moving from 1.5GB to 25GB.
> On 26/03/2013 11:57 AM, "Paul Gear" <ausnog at libertysys.com.au> wrote:
>> Hi all,
>> We have high-up non-technical people in our organisation asking for a
>> higher email message size limit.  (Ours is set to 10 Mb, which is the most
>> common limit i've seen.)  We've explained that increasing our email
>> system's limit won't solve the problem if every other mail system has a
>> similar limit, but the message isn't getting through.
>> If you have the information at your disposal, would you kindly reply
>> off-list with your current email size limit?  I'm happy to summarise the
>> results for the list.
>> If there's a better place to ask this, or if someone has already collated
>> this data for most Australian ISPs, please feel free to point me to the
>> right place.
>> Thanks in advance,
>> Paul
>> P.S. I'll be asking the same question to SAGE-AU shortly, so if you're on
>> both lists, apologies for the repetition, and feel free to delete one of
>> them. :-)
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