On Wed, 2021-08-18 at 15:59 +1000, raf wrote: > > Database files used with > sender_dependent_relayhost_maps need either an email > address or a @domain on the left hand side. > > You are trying to use shell glob-style patterns instead > of email addresses or @domains. I don't think > glob-style patterns are a thing anywhere in postfix. > You might want to read > http://www.postfix.com/DATABASE_README.html > And always carefully read the documentation in > http://www.postfix.com/postconf.5.html for whatever > setting you are using. > > So, if you really should be using > sender_dependent_relayhost_maps, then the left hand > side should just be "@gmail.com" etc., not "*@gmail.com". > > But I think you probably shouldn't be using > sender_dependent_relayhost_maps at all. > > Is this really about emails that have been sent *from* > gmail/hotmail/charter that are being relayed through > your server to another mail server, and that other mail > server is not accepting emails from your server because > of your IP reputation? It seems odd that a domain that > you relay for would be rejecting your server. Are you a > secondary MX for them or not? > > I ask because I used to have a similar sounding problem > with Microsoft/Outlook refusing to accept mail from my > server for secret reasons they felt no need to share > with me. But the problem was getting mail *to* people > with outlook email addresses. The workaround was to use > transport_maps which maps recipient addresses to a > (next hop) transport (and organising access to another > mail server that I could send mail through). > > So, instead of mapping *sender* addresses/domains to a > relayhost like you are trying, I mapped *recipient* > addresses to a transport (a transport is like a > relayhost but more flexible). > > I may have misunderstood what your problem is, but it > sounded very similar to mine. If it is the same sort > of thing, perhaps what you need is something like this: > > main.cf: > transport_maps = regexp:/etc/postfix/transport > > transport: > /.*@(gmail|hotmail|charter)\.com/ relay:[mail.billoblog.com] > > You won't need to run postmap for the transport file when > you change it (because it's a regexp database). > > cheers, > raf >
Thanks. You're probably right -- I kept thinking of my users being the sender, not the sender line on the header. I've implemented the change you suggest. I'll see if my users at charter.com get the emails... billo
