Be warned, your solution of moving dialup.m4 is only a temporary fix, the problem will recurr in my experience.
My ultimate solution is to use postfix instead of sendmail. As this bug is completely intolerable - it loses mail forever!! -- [feisty] sendmail unable to automatically determine domain name https://bugs.launchpad.net/bugs/99459 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
