diff options
Diffstat (limited to 'doc/doc-docbook')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 946f55b11..9243bd3f9 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -15621,7 +15621,12 @@ by a setting such as this: .code dns_again_means_nonexist = *.in-addr.arpa .endd -This option applies to all DNS lookups that Exim does. It also applies when the +This option applies to all DNS lookups that Exim does, +.new +except for TLSA lookups (where knowing about such failures +is security-relevant). +.wen +It also applies when the &[gethostbyname()]& or &[getipnodebyname()]& functions give temporary errors, since these are most likely to be caused by DNS lookup problems. The &(dnslookup)& router has some options of its own for controlling what happens |