Organizations that run DavMail to bridge standard mail clients to Microsoft Exchange or Office 365 received an update this week. Version 6.6.0 addresses a code-scanning alert tied to a regex vulnerability, adjusts OAuth redirect handling to match a recent Microsoft change, and ships fixes across IMAP, SMTP, CalDAV, and CardDAV subsystems. A regex replacement closes a security alert The security change replaces a regular expression in the replaceIcal4Principal method with simple substring calls, resolving a … More → The post DavMail 6.6.0 patches a regex flaw and advances its Microsoft Graph backend appeared first on Help Net Security.