[PERDITION-USERS] Problem with external Real Server

Hi all together my first post, so hopefully I do not ask something that has already been asked several times :-) I installed perdition on my server and it works very well for my local dovecot. clients can connect and perdition connects to the local server. So far perfect :-) Now I thought that I could connect from perdition to other external servers as well. So I set an entry in popmap for user(a)domain.tld to point to server imap.domain.tld:995 But when I check the logfiles I can see that perdition cannot connect to the external server. Although I can ping the server without problems. One strange thing in the logs is that as protocol always IMAP4S is used, even if port 995 would demand for POP3S. How can I achieve that perdition connects via POP3S to a real server, although the initial connection to perdition by client is based on IMAP4S. I tried to setup the real server as well with port 993 in popmap so port and protocol should match. but that did not work either. Thanks for any idea on how to solve that Cheers tobi