On Tue, 5 Feb 2002, Ray Bowles wrote: > I've been experiencing terrible response times in sending mail using > outlook, is this a know issue or is it that my setup is botched?
Yes, your setup is botched -- you are using MS-Outlook. ;-) Seriously, the two most commong causes of long delays when using Sendmail are DNS problems and auth/ident problems. DNS: Make sure both systems have properly configured hostnames which are fully resolvable via DNS. Make sure the sender-SMTP (Outlook) is sending a valid hostname for the HELO/EHLO command. Make sure the "FROM" and "TO" domains are fully resolvable. Make sure reverse lookups are available for all IP addresses involved. auth/ident: Some Sendmails send an auth/ident query to the sender-SMTP to see if they can identify who is doing the connect (this is of dubious value, but it is common none-the-less). If the TCP connect for the auth/ident query (from the reciever-SMTP) goes into a blackhole, the receiver-SMTP has to wait for the TCP connect to timeout. I have heard rumor that some versions of MS-Windows do not properly send an RST in response to TCP connection attempts to a closed socket. Also, firewalls configured by overzealous admins who do not understand IP configure their systems to silently discard incoming connection attempts. > It might also be worth mentioning that I do not experience this problem > when using pine. By default, Pine will attempt delivery via a local /usr/lib/sendmail, so unless you have changed things, that is inconclusive. -- Ben Scott <[EMAIL PROTECTED]> | The opinions expressed in this message are those of the author and do not | | necessarily represent the views or policy of any other person, entity or | | organization. All information is provided without warranty of any kind. | ***************************************************************** To unsubscribe from this list, send mail to [EMAIL PROTECTED] with the text 'unsubscribe gnhlug' in the message body. *****************************************************************
