(I’ve taken this off list for now) From: Bowen Song <bo...@bso.ng> Date: Tuesday, 21 December 2021 at 18:29 To: bened...@apache.org <bened...@apache.org> Cc: dev@cassandra.apache.org <dev@cassandra.apache.org> Subject: Re: [DISCUSS] Disabling MIME-part filtering on this mailing list
Hmm, that's a bit unexpected. Could you please have a look at the email headers and see what's the reason for it being treated that way? Have a look at the "Authentication-Results" headers, and the headers with "spam" in their names, especially "X-Spam-Status" if it's present. I suspect it was treated as spam for other reasons, not because failing the DMARC, which would result in the email being rejected completely. On 21/12/2021 17:49, bened...@apache.org<mailto:bened...@apache.org> wrote: Unfortunately it still arrived in my junk mail folder ☹ From: Bowen Song <bo...@bso.ng><mailto:bo...@bso.ng> Date: Tuesday, 21 December 2021 at 12:02 To: dev@cassandra.apache.org<mailto:dev@cassandra.apache.org> <dev@cassandra.apache.org><mailto:dev@cassandra.apache.org> Subject: Re: [DISCUSS] Disabling MIME-part filtering on this mailing list I have just received a confirmation from Infra informing me that this change has been made. I'm sending this email as an update but also a test. Hopefully it arrives in your inbox without trouble, and my email address no longer has the ".INVALID" append to it. On 04/12/2021 17:15, Bowen Song wrote: > Hello, > > > Currently this mailing list has MIME-part filtering turned on, which > will results in "From:" address munging (appending ".INVALID" to the > sender's email address) for domains enforcing strict DMARC rules, such > as apple.com, zoho.com and all Yahoo.** domains. This behaviour may > cause some emails being treated as spam by the recipients' email > service providers, because the result "From:" address, such as > "some...@yahoo.com.INVALID"<mailto:some...@yahoo.com.INVALID> is not valid > and cannot be verified. > > I have created a Jira ticket INFRA-22548 > <https://issues.apache.org/jira/browse/INFRA-22548> asking to change > this, but the Infra team said dropping certain MIME part types is to > prevent spam and harmful attachments, and would require a consensus > from the project before they can make the change. Therefore I'm > sending this email asking for your opinions on this. > > To be clear, turning off the MIME-part filtering will not turn off the > anti-spam and anti-virus feature on the mailing list, all emails sent > to the list will still need to pass the checks before being forwarded > to subscribers. Morden (since 90s?) anti-spam and anti-virus software > will scan the MIME parts too, in addition to the plain-text and/or > HTML email body. Your email service provider is also almost certainly > going to have their own anti-spam and anti-virus software, in addition > to the one on the mailing list. The difference is whether the mailing > list proactively removing MIME parts not in the predefined whitelist. > > To help you understand the change, here's the difference between the > two behaviours: > > > With the MIME-part filtering enabled (current behaviour) > > * the mailing list will remove certain MIME-part types, such as > executable file attachments, before forwarding it > > * the mailing list will append ".INVALID" to some senders' email address > > * the emails from the "*@*.INVALID"<mailto:*@*.INVALID> sender address are > more likely to > end up in recipients' spam folder > > * it's harder for people to directly reply to someone who's email > address has been modified in this way > > * recipients running their own email server without anti-spam and/or > anti-virus software on it have some extra protections > > > With MIME-part filtering disabled > > * the mailing list forward all non-spam and non-infected emails as it > is without changing them > > * the mailing list will not change senders' email address > > * the emails from this mailing list are less likely to end up in > recipients' spam folder > > * it's easier for people to directly reply to anyone in this mailing list > > * recipients running their own email server without anti-spam and/or > anti-virus software on it may be exposed to some threats > > > What's your opinion on this? Do you support or oppose disabling the > MIME-part filtering on the Cassandra-dev mailing list? > > > p.s.: as you can see, my email address has the ".INVALID" appended to > it by this mailing list. > > > Regards, > > Bowen >
