My apologies: were there any suggestions regarding what i should do? Thanks, Ranjan
On Sat, 10 Oct 2020 20:07:33 -0500 Ranjan Maitra <mai...@email.com> wrote: > Hi Viktor, > > Thanks for your response! > > On Sat, 10 Oct 2020 19:31:09 -0400 Viktor Dukhovni > <postfix-us...@dukhovni.org> wrote: > > > On Sat, Oct 10, 2020 at 04:04:30PM -0500, Ranjan Maitra wrote: > > > > > I have postfix running on both my home and office machines. I am able > > > to send e-mail from my office machine (that uses my employer's > > > mailhub, etc), but not from my home machine when using my office > > > e-mail address as the sender's address. However, I am able to connect > > > via ssh+vpn with 2FA to my office machine. My question is: can I set > > > my home machine's postfix up such that I can send e-mail through the > > > ssh tunnel to my office machine (sorry for my non-technical > > > description). How do I do this, if possible? > > > > Your question is not sufficiently detailed/precise for an answer to > > be possible. You need to provide more details about the SSH VPN. > > I am not sure I know all the answers to your questions, so some suggestions > on how to figure these out would be very helpful (I am on Fedora 32 linux). > > > - Does it allow port forwarding? Or just terminal and perhaps > > X11 sessions? > > I believe that is allows at least some port forwarding, but I do not know > what all it does. My ssh is to a non-standard port, however. > > > - What ports if any can you forward? > > - Any other relevant details... > > How do I figure this out? > > cat /etc/services | grep ssh > > ssh 22/tcp # The Secure Shell (SSH) > Protocol > ssh 22/udp # The Secure Shell (SSH) > Protocol > x11-ssh-offset 6010/tcp # SSH X11 forwarding offset > ssh 22/sctp # SSH > sshell 614/tcp # SSLshell > sshell 614/udp # SSLshell > netconf-ssh 830/tcp # NETCONF over SSH > netconf-ssh 830/udp # NETCONF over SSH > sdo-ssh 3897/tcp # Simple Distributed Objects over SSH > sdo-ssh 3897/udp # Simple Distributed Objects over SSH > netconf-ch-ssh 4334/tcp # NETCONF Call Home (SSH) > snmpssh 5161/tcp # SNMP over SSH Transport Model > snmpssh-trap 5162/tcp # SNMP Notification over SSH > Transport Model > tl1-ssh 6252/tcp # TL1 over SSH > tl1-ssh 6252/udp # TL1 over SSH > ssh-mgmt 17235/tcp # SSH Tectia Manager > ssh-mgmt 17235/udp # SSH Tectia Manager > > > > Also: > > > > - Do you ever send email to office recipients from your non-office > > email address? How do you want these to be routed? > > I use postfix only for my office e-mail address so I do not believe this to > be an issue. > > > > > - If you do use your office address as a sender address, but a > > message is not deliverable, how should the bounce be routed? > > I don't know if this is the answer, but I guess that the bounce should be > routed back to my office e-mail address? > > I am happy to provide more information. > > Many thanks again and best wishes, > Ranjan > > > > > -- > > Viktor. > > > -- > Important Notice: This mailbox is ignored: e-mails are set to be deleted on > receipt. Please respond to the mailing list if appropriate. For those needing > to send personal or professional e-mail, please use appropriate addresses. > -- Important Notice: This mailbox is ignored: e-mails are set to be deleted on receipt. Please respond to the mailing list if appropriate. For those needing to send personal or professional e-mail, please use appropriate addresses.
