Re: [exim] suspected mail loop - Not
On Thu, Feb 16, 2023 at 01:54:23PM +, graeme vetterlein via Exim-users wrote: > However, tracking the original message down, it was from IBM and contains e.g. > > *29 matches for "Received" in buffer: > 1670514307.H745399P3100673.ybox.xxx * > > and they all appear legitimate** , it really did pass through 29 servers ! An impressive hop count, did it go through mailing lists and then get forwarded from a user's portable email address (an alumni alias or similar) to their current actual mailbox? On Fri, Feb 17, 2023 at 10:13:28AM +0100, Heiko Schlichting via Exim-users wrote: > That's hard to answer. The following is set on our servers: > > $ exim -bP received_headers_max > received_headers_max = 50 FWIW, this (50) matches the Postfix default: http://www.postfix.org/postconf.5.html#hopcount_limit -- Viktor. -- ## 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/
Re: [exim] TLS authentication
On 17/02/2023 04:18, Ian Zimmerman via Exim-users wrote:
what is a "variable of type certificate" in exim's proudly unityped
macro language?
$tls_{in,out}_(our,peer)cert are all certificate-type variables.
They are not useable as text, but can be used by a "certextract"
expansion.
The documentation Concept Index has an entry for "certificate", "variables".
--
Cheers,
Jeremy
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Re: [exim] suspected mail loop - Not
> The following address(es) have yet to be delivered: > graeme.h...@ybox.xxx:*Too many "Received" headers* - suspected mail loop > [...] > 1:*Is there a tunable somewhere?* received_headers_max > 2:*Is the current default reasonable?* That's hard to answer. The following is set on our servers: $ exim -bP received_headers_max received_headers_max = 50 In very rare cases, this limit is also reached. Without exception, however, it is spam where someone has overdone it with the header forgery. Heiko Heiko SchlichtingFreie Universität Berlin heiko.schlicht...@fu-berlin.de Zentraleinrichtung für Datenverarbeitung Telefon +49 30 838-54327 Fabeckstraße 32 Telefax +49 30 838454327 14195 Berlin smime.p7s Description: S/MIME cryptographic signature -- ## 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/
[exim] suspected mail loop - Not
I received a message frozen warning. The following address(es) have yet to be delivered: graeme.h...@ybox.xxx:*Too many "Received" headers* - suspected mail loop So I took it at face value, maybe I have a mail loop? However, tracking the original message down, it was from IBM and contains e.g. *29 matches for "Received" in buffer: 1670514307.H745399P3100673.ybox.xxx * and they all appear legitimate** , it really did pass through 29 servers ! In the past (e.g. with ! style addressing) this used to happen, but less so with recent email. So I guess the question is: 1:*Is there a tunable somewhere?* 2:*Is the current default reasonable?* I can post the headers (or indeed the mail) but I'll need to redact a small bit as I suspect they've exposed a mail relay which was intended to be hidden. -- Graeme -- ## 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/
