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I've been pulling my hair out the last couple days trying to figure out why our site was intermittently extremely slow while posting. In researching here I discovered the sendmail issue ( http://www.vbulletin.com/forum/showt...t=50241&page=1 ) that could cause this. Looking through my logs I found that yesterday verizon.net was refusing connections. While watching today found that hotmail and a number of others would time out for short periods. The solution I came up with was to put sendmail into queue mode (rather than background mode) and to set it to check the queue every 5 minutes and send out any queued email. To do this first find your sendmail.cf file and search for "DeliveryMode=", it will most likely be set to "background" - change it to queue or:
O DeliveryMode=queue
Then you need to change sendmail to check the queue every 5 minutes. I did this by adding this line to my rc.conf file:
sendmail_flags="-bd -q5m"
if there is already a sendmail_flags entry there I would just add the "-q5m" to it. Now any email notifications or emails will go into the queue and will be sent up to 5 minutes from that time. It's only a solution for those that are on their own server and delays emails going out but IMO it's much better than having slow posting issues. In a couple cases I had users waiting up to 5 minutes for posts to go through.
O DeliveryMode=queue
Then you need to change sendmail to check the queue every 5 minutes. I did this by adding this line to my rc.conf file:
sendmail_flags="-bd -q5m"
if there is already a sendmail_flags entry there I would just add the "-q5m" to it. Now any email notifications or emails will go into the queue and will be sent up to 5 minutes from that time. It's only a solution for those that are on their own server and delays emails going out but IMO it's much better than having slow posting issues. In a couple cases I had users waiting up to 5 minutes for posts to go through.
