Date: Mon, 21 Jan 2019 08:45:44 -0600 From: Valeri Galtsev <galtsev@kicp.uchicago.edu> To: freebsd-questions@freebsd.org Subject: Re: Trying to understand some email issues Message-ID: <46ff038f-959b-838f-8101-7231e4451836@kicp.uchicago.edu> In-Reply-To: <CY4PR04MB04880D95E70F2BE914A52AEA809F0@CY4PR04MB0488.namprd04.prod.outlook.com> References: <CAFDHx1JFWH8FAJ3nbvZC3m6CCpbjCqrG01PYNMOHJSKo2HnWWQ@mail.gmail.com> <CY4PR04MB04880D95E70F2BE914A52AEA809F0@CY4PR04MB0488.namprd04.prod.outlook.com>
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On 1/21/19 6:06 AM, Carmel NY wrote: > On Sun, 20 Jan 2019 22:33:02 -0800, Patrick Mahan stated: > >> All, >> >> FreeBSD 11.2 >> >> Running postfix 3.3.2_1,1 >> >> I'm getting hammered with thousands of emails from yahoo.com - >> >> Here is an example - >> >> Jan 20 22:09:01 ns postfix/smtp[1308]: 2DA97A2E2EF: >> to=<pwascak@aol.com>, >> relay=mx-aol.mail.gm0.yahoodns.net[98.137.157.43]:25, delay=13730, >> delays=13728/0.31/1.1/0.06, dsn=4.7.0, status=deferred (host >> mx-aol.mail.gm0.yahoodns.net[98.137.157.43] said: 421 4.7.0 [TSS04] >> Messages from 23.24.207.145 temporarily deferred due to user >> complaints - 4.16.55.1; see >> https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL >>FROM command)) >> >> I'm trying to determine if I am somehow relaying emails to yahoo.com, >> or is this someone attacking me. >> >> I am pretty sure I have postfix to avoid acting like a relay for >> unauthenticated connections. But this maybe something I have messed >> up. This has been happening only since I upgraded to 11.2 (I was at >> 9.x). I also just recently switch from sendmail to postfix as well. >> >> I can provide my postfix config on request if needed. >> >> Pointers to other mail-lists are welcomed. I decided to start here >> before jumping on the postfix mailing list. >> >> Thanks in advance, >> >> Patrick > > Patrick, you wouldn't see a podiatrist if you were suffering from > cancer, you would see an oncologist. The same rational is true here. > Your problem deals with "postfix", so your questions should be directed > there. There are an extremely knowledgeable group. The author, Wietse > Venema, quite often chimes in with answers to user's questions. To join > the list, check this out: http://www.postfix.com/lists.html > > In any case, see these URL's for further info: > http://www.postfix.com/DEBUG_README.html > http://www.postfix.com/DEBUG_README.html#mail > Better, provide output from the postfinger tool. This can be found at > http://ftp.wl0.org/SOURCES/postfinger. > Although I agree with what you said, it is yet to be determined that there is problem with postfix. So general start that was suggested here can be a good start. And I'm sure on postfix mail list the same starting investigation routes will be suggested. Good luck. Valeri -- ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
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