Hi David,
Exim is an SMTP server. Mail clients don’t use SMTP to download mail, they use SMTP to send mail. They use IMAP, or a Microsoft proprietary protocol, or POP3 to download mail.
It’s a very strange requirement, and I don’t know of any IMAP server which would limit the number of downloaded messages: they just do what the clients ask. BTW: displaying 3000 messages doesn’t imply downloading them. A good IMAP client will download only the headers (Outlook isn’t a good IMAP client). Mulberry hasn’t seen much development for a long while, but can be configured quite flexibly.
> On 16 Jun 2015, at 15:39, David Byrne <david.byrne@???> wrote:
>
> Hi all,
>
> We have a client who has a large number (1000+) of users, sending ~25,000 emails per day. Inbox turnover is high, and the way in which they work requires the mail clients (Outlook in this case for the most part) to only download a set number (or time period) of emails. For example, each mail client would want 3000, or 30days worth of emails in their client at any one time.
>
> Outlook and other mail clients do not support this, so it must be enforced at server level somehow. Is this something Exim can do? I have looked around quite a bit, and can see no mention of this as a feature as such. Any suggestions or assistance is welcome. Thanks.
>
> Best Regards,
> Dave Byrne
> Head of Technical Projects
> VooServers Limited
>
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