Also worth mentioning mailbox sizes. Some corporate systems have piddly
amounts of mail storage per user, and it's entirely possible that a 30Mb
message would bounce because a user's mailbox is full. Or worse it could
fill up their mailbox and cause other incoming mail to bounce. I think
my wife had a 50Mb exchange mailbox when she was working at Hewlett
Packard a few years ago, she was constantly fighting with keeping the
thing within the limits.
I don't know how much of a problem this is in the real world and I'm
sure storage has increased, but I'd definitely lean towards sending them
a download link instead of an attachment if that was a possibility at all.
Harvey.
On 16/12/2011 11:02 a.m., Hal9000 wrote:
The limits on email sizes are determined by the ISPs and Email
Administrators.
There is no real standard defining what is the acceptable email size.
A quick check on the main ISPs using Telnet and EHLO gives me the
following.
smtp.cleat.net.nz - No defined email size limit
smtp.xtra.co.nz - 20971520 bytes (20 Mb more or less)
smtp.vodafone.co.nz - 33554432 (33Mb more or less)
smtp.inspire.net.nz - 51200000 (50Mb more or less)
smtp.orcon.net.nz - 31457280 (31Mb more or less)
In the past I have even found one ISP whose limit was about 10Mb.
One also should consider the appropriateness of firing regular 30Mb
messages and whether an email with a link to a file stored on a web
site or FTP server would be a more efficient means of disseminating
their information.
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Harvey Kane
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