I'm having a problem with authentication and vpopmail with courier-imap, I have a server which is very busy with webmail requests and it seems courier-imap (or the auth module its using) is updating the open-smtp file, its updating so much that its locking other people out while its being written to, causing imap auth errors...does anyone have a fix for this?
Courier-IMAP does not update any file called "open-smtp". If you search Courier-IMAP's source you will find no reference to any file of that name.
This file appears to be updated by the vpopmail library. Courier-IMAP merely invokes a single function whose name includes "open-smtp" (and this portion of the code has actually been pulled out of recent Courier-IMAP sources due to a security issue with vpopmail), and everything that happens from that point on occurs internal to the vpopmail library.
Issues with vpopmail libraries are better addressed on the vpopmail list.
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