[mailop] Google and Spam detection

Hi folks, Recently, I heard often that my mails to friends on gmail ended up in spam. As my mails are always plain text, signed by PGP and coming from a mail server that I can assure is never sending spam or even high amount of mails, that is not in any blacklist, I wonder, what makes it google

Re: [mailop] Google and Spam detection

Am Fr den 24. Jul 2020 um 15:51 schrieb Michael Peddemors via mailop: > We have found that the FIRST thing you need to do is put a sane SPF record > in place for IPv4 traffic.. This has resolved the issue for most of the > cases we have seen for clients. Not the issue. The SPF is fully correct.

Re: [mailop] Google and Spam detection

Am Fr den 24. Jul 2020 um 15:34 schrieb Thomas Hochstein via mailop: > In my experience, most problems concerning mail delivery > to Google disappear as soon as you deliver mail over ipv4 > (instead of ipv6). I knew about that issue. But my mail server is still IPv4 only so no issue for me.

Re: [mailop] Google and Spam detection

Hi, Am Fr den 24. Jul 2020 um 14:20 schrieb Faisal Misle via mailop: > I also strongly recommend you start signing with DKIM. You may not have had a > use for it, but now you do. I did it now and fallen in all misstakes one could do. - First I tried out a ed25519 key. That worked very fast but

Re: [mailop] Google and Spam detection

Hi Phil, many thanks for your very helpfull explanation. Just a few comments... Am Fr den 24. Jul 2020 um 20:40 schrieb Phil Pennock via mailop: > With a poor IP-based reputation, you need to see if you can score a > better domain-based reputation. This is where DKIM comes into play: > once

Re: [mailop] DMARC reports - was Re: New server email being treated as spam by Google

Am So den 22. Nov 2020 um 13:56 schrieb Andrew C Aitchison: > 1 That isn't what a DMARC report tells you. > The report tells you: > a) that Google are receiving messages claiming to be from you, > b) when others are mailing google user and faking that you sent it, and > c) if genuine mail from

Re: [mailop] New server email being treated as spam by Google

Hi Paul, I have the same problem for years. Even more, I get dmarc messages from google that everything is pass but the mails are delivered to spam box. I resigned. There is nothing, one can do to get mails delivered not to spam. Maybe you have to bribe google or such. I don't know. When I send

Re: [mailop] Digital Ocean spoofing activity

Hi, I used to block OVH and DO not only caused by mail abuse than of a bad reputation of hosting many bot nets. Unfortunately I always find other networks of them that is not in my blocklist. Does anybody have a complete list of IP ranges relating to OVH and DO? Regards Klaus -- Klaus

Re: [mailop] Microsoft/O365 SPF failures

Hi, thanks for the info. Am Do den 20. Jan 2022 um 19:52 schrieb joemai...@nym.hush.com: > That is intentional/by design. > > The source is inside 40.95.0.0/16 which is their "relay pool". It is > documented here - >

[mailop] Microsoft/O365 SPF failures

Hi, since several weeks I see more and more SPF-Errors for mails coming from O365. It seems that when mails gets relayed, they use outbound mail servers that are not valid for sending from the (relaying, not origin) mail address. My O365 account where I have relaying active is an academic

[mailop] Strange mail delivery from microsoft

Hi, I have tighten my firewall a bit and seen many attacks from Microsoft (40.92.0.0/16). They contact once from a IP and then never again. If I greylist them, the will try to deliver from a different address which gets greylisted again and so on. Could you please tell me how to handle that

Re: [mailop] Strange mail delivery from microsoft

I have some update.. Greylisting was not the problem I had/have with microsoft. Due to ongoing attacks (especially also from big clouds like microsoft) I have a limit of 10 connections per IP and hour. That seems not enough for microsoft to deliver 1 or 2 mails per days relyable. What a shity

Re: [mailop] Strange mail delivery from microsoft

Am Mo den 19. Jun 2023 um 6:33 schrieb Hans-Martin Mosner via mailop: > I'm inclined to repeat what I said before: If your setup breaks mail > consistently, it's likely your setup that's to blame. Others seem to be able > to receive Outlook mail just fine. Microsoft didn't ask you to implement an

Re: [mailop] Strange mail delivery from microsoft

Am Di den 20. Jun 2023 um 3:21 schrieb Ángel via mailop: > I blame them by using a big amount of IPs to deliver mails even for > > the same mail and for giving a host for malicious hosts that try to > > get spam out. I blame them also for doing connections that are > > absolute not needed and a

Re: [mailop] [EXTERNAL] Re: Strange mail delivery from microsoft

Am Mo den 19. Jun 2023 um 21:55 schrieb Michael Wise via mailop: > If you're using GreyListing, know that a given email will not be coming from > the same IP address twice. > > The outgoing IP address is randomized for ... reasons. I substitute "no". That is absolutely ignorant to tell the