Re: E-mail problem
On 2020-11-13, Berkay Tuncel wrote: > Hi all, > > > > We need an advice for our e-mail traffic with openbsd.org > > > When I sent an e-mail to openbsd.org which is rhs, from 160.75.0.0/16, I > got a TLS handshake error. On the other hand, when I tried from another > subnet, there was no problem. It would help to include the logs from your MTA (including timestamps) and the exact text of the error message. "tried from another subnet" - is that the same machine using a different source address - or a different machine on another subnet? > Nevertheless, our mta has not a problem like this with any other mta. > That's why, I think it can be a network related issue but still we need > some help :) Maybe network related, maybe TLS stack.
Re: E-mail problem
On 20/11/13 11:26, Berkay Tuncel wrote: > Hi all, > > > > We need an advice for our e-mail traffic with openbsd.org > > > When I sent an e-mail to openbsd.org which is rhs, from 160.75.0.0/16, I > got a TLS handshake error. On the other hand, when I tried from another > subnet, there was no problem. > > > Nevertheless, our mta has not a problem like this with any other mta. > That's why, I think it can be a network related issue but still we need > some help :) > > > Thanks. > > Berkay I'm no expert on smtpd(8); that said, it's essential to post an appropriate amount of information to troubleshoot the problem. In your case, that means including what's inside smtpd.conf(5) and pf.conf(5) (as it could be related to packet filtering), as well as output from /var/log/maillog and dmesg(8). I might be forgetting something, in which case someone else can chime in with additions, but these are the obvious inclusions in my mind. -- https://amissing.link
Re: E-mail problem
Hi Tom, Firstly thanks for your response. I am sending it from itu.edu.tr Yes, we have spf records and also other smtp precautions such as dkim and so on. We use sendmail, so we have sendmail conf and macro. Also, we have cipher restrictions. Nevertheless, the cipher which has successful communication with mail.openbsd.org is allowed on our mta. Meanwhile this cipher is ECDHE-RSA-AES256-GCM-SHA384. Thanks. Berkay Tom Smyth , 13 Kas 2020 Cum, 15:27 tarihinde şunu yazdı: > Do u have an spf record for your domain and what domain are you sending > from? > > What is your opensmtpd.conf > Do u have restrictions onciphers supported by your mta > > On Friday, 13 November 2020, Berkay Tuncel wrote: > >> Hi all, >> >> >> >> We need an advice for our e-mail traffic with openbsd.org >> >> >> When I sent an e-mail to openbsd.org which is rhs, from 160.75.0.0/16, I >> got a TLS handshake error. On the other hand, when I tried from another >> subnet, there was no problem. >> >> >> Nevertheless, our mta has not a problem like this with any other mta. >> That's why, I think it can be a network related issue but still we need >> some help :) >> >> >> Thanks. >> >> Berkay >> > > > -- > Kindest regards, > Tom Smyth. > -- Berkay TUNCEL
Re: E-mail problem
Do u have an spf record for your domain and what domain are you sending from? What is your opensmtpd.conf Do u have restrictions onciphers supported by your mta On Friday, 13 November 2020, Berkay Tuncel wrote: > Hi all, > > > > We need an advice for our e-mail traffic with openbsd.org > > > When I sent an e-mail to openbsd.org which is rhs, from 160.75.0.0/16, I > got a TLS handshake error. On the other hand, when I tried from another > subnet, there was no problem. > > > Nevertheless, our mta has not a problem like this with any other mta. > That's why, I think it can be a network related issue but still we need > some help :) > > > Thanks. > > Berkay > -- Kindest regards, Tom Smyth.
E-mail problem
Hi all, We need an advice for our e-mail traffic with openbsd.org When I sent an e-mail to openbsd.org which is rhs, from 160.75.0.0/16, I got a TLS handshake error. On the other hand, when I tried from another subnet, there was no problem. Nevertheless, our mta has not a problem like this with any other mta. That's why, I think it can be a network related issue but still we need some help :) Thanks. Berkay
