sendmail not processing messages after reboot - possible sendmail bug

[theedge981]

All,

I am running Fedora 10 and working with sendmail to send messages via various scripts. I've gotten everything working and under normal circumstances the messages get delivered as expected. However when I reboot my computer, all mail designated for sendmail gets hung up in the queue. I've confirmed that sendmail is set to start on boot (runlevel 5) and I've checked for the existence of sendmail processes (they indeed exist after boot).

However, if I restart the sendmail daemon manually, everything in the queue gets sent and I get flooded with a backlog of emails from the past several hours (or days).

Is there a reason or common problem as to why sendmail doesn't actually process mail after startup and why manually restarting the process seems to solve the problem? Is this a bug in sendmail?
/var/log/maillog doesn't reveal anything out of the ordinary.

Here's the pertinent info:
sendmail-8.14.3-1.fc10.i386
sendmail-cf-8.14.3-1.fc10.i386

kernel 2.6.27.7-134.fc10.i686


Thanks for any insight!
Dan

[theedge981]

All,

I should follow up as I am still having this problem. I came across some posts online saying that sendmail is somewhat dependent on performing a DNS lookup of itself upon startup. If unable to perform this DNS lookup, sendmail will often hang on boot. While I am not seeing sendmail hang up on boot, I am wondering where in the boot sequence sendmail resides and if there is a way to make it one of the last services to start.

I threw a line into my rc.local file to immediately restart sendmail, but even this doesn't appear to have solved the problem.

Does anyone have any ideas? This is a frustrating problem, I didn't see this behavior in Fedora 8's sendmail and I don't believe there have been any sendmail updates via yum since I installed Fedora 10 last month. Since I'm guessing this is the stock version of sendmail packaged with Fedora 10, is anyone else noticing similar problems? Aside from configuring it to forward outgoing mail through my ISP's SMTP server, the configuration is the default.

Thanks!

[theedge981]

All,

I solved this problem a few days ago and wanted to follow-up for those who may also have this problem.
I also noticed problems with certain PHP webpages on my apache server. I had PHP scripts on certain pages that required an internet connection and noticed they were failing. This led me to believe that there was a problem independent of sendmail.

I found instructions on how to disable NetworkManager at this site: http://www.mjmwired.net/resources/mj...0.html#network

Reverting to the old "network" service solved all problems mentioned above. While I could have tweaked /etc/sysconfig/network and added NETWORKWAIT=1, I don't have any legitimate need for NetworkManager so disabling it was a simple solution.

Dan