No, resaving the pop3 accounts doesnt help.
But reinstalling MailStation does! The problem is, that it seems that the most recent MailStation version needs DSM 4.0 (2198) to be installed. At least thats what I read on the Gemran forum.
So, do as gangsterwagen posted and you are back.
And dont forget to check the Synology firewall.
*Please do not Private Message me for support questions; leave it on the forum so all members can learn. Thanks!*
DS712+ / DSM 4.3-3810 Update 1 / 2 x HD204UI (RAID0) / LMS 7.7.2-007
DS110+ / DSM 4.3-3810 Update 1 / HD154UI
DS408 / DSM 4.0 2228 / 3 x ST31000340AS (RAID0) + 1 x HDS721010KLA330
DS207+ / DSM 3.1.1637 / ST31000340AS + WD5000KS
DS-106x / DSM 4.0 2228 (from DS108j) /
2 Squeezebox 3 + Boom
APC Smart UPS SUA750i