==== Required information ====
- iRedMail version: 0.8.0
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: CentOS 5.6
- Related log if you're reporting an issue:
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Wondering if I need to tweak iRedMail settings as our server gets busier. We've been getting random SMTP timeout errors over the past few months, and they seem to be getting more frequent. An example of what happens is that I will compose a message in Thunderbird, attempt to send it, and it will hang on the "connecting to mail.mydomain.com" for a minute or two, and then show a message that the connection to the SMTP server has timed out. Then, I attempt to send again and it goes immediately. This seems to be serverwide regardless of the email client used. I'm wondering if, as we've grown and added accounts (there are about 1000 accounts on this server), if we are exceeding a maximum number of connections and that's why it's timing out. Could that be the case, and where would I go about increasing the number of connections available?