Are there any Y2K issues with Exim?
A2000: The author of Exim believes that it is Y2K-compliant, as long as the underlying operating system and C library are. Exim does not parse dates or times at all. Internally, it makes some use of binary timestamps in Unix format (number of seconds since 1-Jan-1970) and uses C library services to convert these to printing forms (e.g. for logging). The printing forms all use 4-digit years. Some people have tried various tests. No problems have been reported, but details of what tests have been done are not available.