Now we've got a customer who send and receive only really big mails, mostly 10-100mb per mail. They work with big images :-) Overall e-mails are about 140GB.

I want to switch them from cyrus to dbmail, and wonder if somebody has a customer with lots of such e-mails (number and size). Would it be better, performancewise, to increase the messageblks, or do I not have to care about that? I'd better not change the default, because with every upgrade I'd have to change it. But I need to prevent a performance problem.

We are in a similar situation (lots of attachments - some big) - but I cannot see taking the time/effort to switch to dbmail until it supports single-instance storage of at least attachments. This would most likely dramatically impact your storage requirements, as it would ours, since I'll wager that at least some, if not a lot, of the attachments your users work with are duplicates. Having 25 copies of an email with 25 copies of a 25MB attachment is just plain insanity to me - especially when it doesn't have to be that way.

Having a database as a backend for an email storage system is an ideal environment to be able to handle this, so I was very disappointed when I found out that dbmail doesn't support it (actually I was thinking that would be a/the PRIMARY reason to use a database to store email).

Anyway, I'm just waiting (impatiently) until dbmail supports this before we switch. I wish I could convince the boss to make this a paid feature request, but he doesn't 'get' computer stuff and doesn't understand how much it would benefit us.

--

Best regards,

Charles
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