On Fri, Sep 17, 2021, 7:28 PM raf, <post...@raf.org> wrote: > On Fri, Sep 17, 2021 at 05:48:24PM -0400, Ian Evans <dheianev...@gmail.com> > wrote: > > > Just curious if anyone on the list has ever had issues with their postfix > > server communicating with bell.net or their related sympatico.ca email > > addresses? > > > > I've been trying to send to a few but keep getting "421 Connection limit > > reached" followed by an eventual failure days later. I've seen people > post > > about this issue on discussion boards, but no clear idea of the fix or > > issue. > > > > Thanks for any insight. > > Sorry, no. But if the connection limit just relates to connections > from your server (likely), then it might help to increase the connection > cache TTL so that connections stay open for longer: > > http://www.postfix.org/postconf.5.html#connection_cache_ttl_limit > > e.g.: > > /etc/postfix/main.cf: > connection_cache_ttl_limit = 10s > > But if your server is only sending a small number of emails to those > destinations, the above is probably useless. > > You could ask postmas...@bell.net what's happening. > > This forum might help, it contains complaints about this, > but it's only for Bell customers: > > https://www.dslreports.com/forum/sympatdirect~days=365~start=30 > > Hmm, maybe not. You can see the topic titles, but it doesn't let > you see anyone else's content. Wierdly unhelpful. > > Discovered that you can actually post in that subforum without being a customer. Looking at the various threads, it seems to be a frequent question. If I get a reply, I'll post what they said here in case it might help someone in the future.
Thanks. Ian
