On 30/11/2018 20:24, Ian Zimmerman via Exim-users wrote: > What happens if the right hand side for headers_add option is empty > after expansion? Clearly I would rather not add an empty header line > ;-) > > Right now I am most interested in the answer for the generic transport > option, but I don't expect it to differ in all the other places where > this option is allowed. >
The spec says: "If the result of the expansion is an empty string, or if the expansion is forced to fail, no action is taken." For the ACL add_header, the spec doe not say - but the code does silently do nothing. -- Cheers, Jeremy -- ## List details at https://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/
