The limits I have seen are by emails, not attachments.
There is a 10mb limit on an email on most servers. However, this would get stuck in the outbox.
On March 21, 2016 7:54:07 PM EDT, Gene Wirchenko <genew(a)telus.net> wrote:
>At 16:00 2016-03-20, Sytze de Boer <sytze.kiss(a)gmail.com> wrote:
>>When I look at this client's Sent folder in Outlook, I can see (about)
>20
>>emails were sent WITH attachments, followed by (approx) 10 that
>DIDN'T.
>
> Is there a limit on how many MB of attachments can be sent in a
>time period?
>
>[snip]
>
>Sincerely,
>
>Gene Wirchenko
>
>
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.