On 22 Dec 2010, at 12:31, Johann Spies wrote: > Please help me to understand and maybe a practical situation will make > it clear. > > On our campus there several mailservers for which we relayed mail. Then > it happens that one or more of them cease to exist and the mail have to > be delivered at another place (e.g. exchange). > > How would you, without rewriting the email, handle that situation. What > we did was to rewrite it:
There is no need to rewrite in this case. Standard routing would get the email there OK - router given below. However there might be a case to rewrite to ensure that replies (if the sender addresses were in the deprecated domain), or reply-alls go direct to their destination rather than via the deprecated domain. This does have other disadvantages - it is changing mail (which may well have legal implications) and may break digital signatures. Rewriting is generally best avoided for these reasons. > Say the mail serves akad and addresses had the pattern: > [email protected] > > We rewrote it to [email protected]. You could have a router like:- redirect_deprecated: driver = redirect domains = akad.sun.ac.za data = ${quote_local_part:[email protected] That would handle the delivery. Any rewriting is cosmetic to that. Nigel. -- [ Nigel Metheringham [email protected] ] [ - Comments in this message are my own and not ITO opinion/policy - ] -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
