Displaying 2 results from an estimated 2 matches for "nampaichuanlondon".
2019 Mar 24
1
Weird things in the mail queue
...>> the 64 error.
>
> Your MTA should not be passing this along.
Unfortunately Postfix does.
It honors the robustness principle (~Postel's law) and therefore
accepts envelope senders like
from=<<U+FEFF>JamesBrown at triolan.net>
or
from=<Gerald<U+FEFF>Smith at nampaichuanlondon.com>
or
from=<Peter???Smith at taotalk.nl>
(invalid 3-byte UTF-8 .)
which are increasingly making rounds.
With a working local delivery these will just feed spamassassin or
rspamd and all is well. And may be the occasional poor Exchange
customer's email is delivered, too.
With Dovec...
2019 Feb 21
2
Weird things in the mail queue
I noticed a mail stuck in my mail queue. dovecot-lda was returning
error 64 Invalid parameter given. (EX_USAGE).
Weird, weird, weird. After some sleuthing, I found the sender address
was FirstLast at domain.tld, with a UTF8-encoded Unicode U+FEFF ZERO
WIDTH NO-BREAK SPACE character (AKA byte order mark) between "First"
and "Last" :)
Since that is passed as the -f parameter to