<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Just reporting in case someone else runs into this.</div><div class=""><br class=""></div><div class="">I’ve just migrated from an old dovecot server to a new one based on MacPorts dovecot etc..<div class=""><br class=""><div class="">The mailboxes have been migrated with doveadm backup and sync. Receiving and sending mail in the INBOX worked. Moving a message to another mailbox at the top level worked as well. Just not when there is a mailbox hierarchy and I’m more than one level down.</div><div class=""><br class=""></div><div class="">When trying to move a message from INBOX to another mailbox with Apple Mail (macOS Mojave) I got the following error:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space: pre;"> </span>The IMAP command “UID COPY” failed for the mailbox “INBOX” with server error: Character not allowed in mailbox name: '.'</div><div class=""><br class=""></div><div class="">dovecot showed no errors in mail-error.log or mail-info.log</div><div class=""><br class=""></div><div class="">Creating a Mailbox TestLevelOne worked and .TestLevelOne was created in the Maildir store</div><div class="">Creating a Mailbox TestLevelOne/TestLevelTwo didn’t work</div><div class="">Accessing any mailbox at level 2 did not work (only showed old cache)</div><div class=""><br class=""></div><div class="">mail-debug.og didn’t show anything when I tried this.</div><div class=""><br class=""></div><div class="">The solution was that somehow Apple Mail.app (Mojave) had become corrupted. Removing its contents from ~/Library and recreating the accounts solved the issue.</div><div class=""><br class=""></div><div class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>Gerben Wierda</div><div class=""><a href="http://enterprisechess.com/" class="">Chess and the Art of Enterprise Architecture</a></div><div class=""><a href="http://masteringarchimate.com/" class="">Mastering ArchiMate</a></div><div class=""><a href="https://www.infoworld.com/blog/architecture-for-real-enterprises/" class="">Architecture for Real Enterprises</a> at InfoWorld</div><div class=""><a href="https://eapj.org/on-slippery-ice/" class="">On Slippery Ice</a> at EAPJ</div><div class=""><br class=""></div></div></div></div></div></div></div></div></div></div></div></div></body></html>