On Sat Sep13'25 03:03:53PM, Go Canes wrote: > From: Go Canes <letsgonhlcanes0@xxxxxxxxx> > Date: Sat, 13 Sep 2025 15:03:53 -0400 > To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx> > Reply-To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Different postfix connection results from desktop and laptop > on same network using telnet > > On Sat, Sep 13, 2025 at 2:36 PM Ranjan Maitra via users > <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > > telnet mailserver portnumber > > > > on both machines. > > > > In the case of the laptop, I get: > > > > Trying IP address... > > > > (hangs) > > > > while in the case of the desktop, I get: > > > > Trying (same) IP address... > > Connected to mailserver > > Escape character is '^]'. > > 220 out-?.mail.domainname ESMTP Postfix (Ubuntu) > > > > What could the problem be? > > If it is getting the correct IP address then DNS resolution is > working. > Thanks! > Next concern would be routing - do you have issues > connecting to other systems? Thanks, I do not appear to have issues connecting to other systems. > > You can try "traceroute mailserver" on > both systems and compare the results. I tried this, thanks for suggesting this. So, on the desktop, I get 1 and 6-30 as * * *, while the other 4 lines are bunch of DNS names and IP addresses. For the laptop, I get lines 1-5 a bunch of DNS names and IP addresses while lines 6-30 are * * *. > > If routing is good, is it possible the mailserver is blocking your IP > for some reason? > -- It is possible that this is the case, though I am a little perplexed as to why since both of them are official machines registered through me. But of course, that does not mean something to some possibly automated pattern-matching algorithm. Next, I am going to find a connector and see if connecting to the ethernet gets me a different result. Thank you again! Best wishes, Ranjan -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
