Re: A sendmail warning
This WebDNA talk-list message is from 2005
It keeps the original formatting.
numero = 63692
interpreted = N
texte = I think I understand better. The sendmail program is on a different server. I guess that can get bogged down with all the lookups and other things it has to do. The sendmail command on WebDNA was filling my web server's hard drive. I can throttle the command on the web server to slow the filling of the hard disk. I think the Emailer program that connects the two (the webDNA files to the sendmail mail server) can also be throttled so as to not overwhelm the web or email servers. There is a preference that can be set. Thanks, Bill On Dec 27, 2005, at 11:29 AM, Peter Ostry wrote: > On 27.12.2005, at 14:13, William DeVaul wrote: > >> I think sendmail only writes to a folder and then another program >> trickles the emails out. I guess one trick is to make sure the >> email server can handle the rate at which WebDNA sends the emails. > > I was referring to sendmail as the standard Unix mailserver. > "sendmail" is the name of that program which comes with almost > every Unix distribution. The sendmail in WebDNA is something like a > synonyme and can lead to any mailserver (not the best name for a > command...) But you are right, the command writes files to a folder > from where they get transferred or collected from a mailserver, I > don't know the details. > > >> Do you have any experience with writing the emails to the email >> server directly? I'm not sure I can do that now, but I'd like to >> know where to begin. > > Yes, we do that with mass emails from PHP based webservers. PHP > doesn't send as brutally as WebDNA but mass mailing from a > webserver isn't a good idea. The machine goes up to 85% CPU load. > That is not really bad on a Unix server but it isn't fine either. > That's why we go directly to the mailserver. > > Our mailserver is Communigate Pro and it is inhouse. Currently we > send our mails from PHP servers over direct connection (via a shell > command) to a folder on the mailserver. A cron job runs on the > mailserver which puts the files into the send folder via a Perl > script. Actually there are different Perl scripts. Version A > handles a sent address list and just one mail file for non- > personalized mails where we use the mailing list function of the > mailserver. Version B handles individual files for personalized > mails, they are sent as single mails. I am not really happy with > that and would prefer to transfer the files via FTP. We haven't > checked all security issues yet but that would be more reliable > than the current way. If it is to dangerous we plan to set up a > separate SMTP server. > > It depends on your mailserver if you can do it or not. If it > delivers mails out of a folder you can put your mailfiles in that > folder. They must be complete mailfiles folowing the SMTP > specifications (including the header) because they are sent without > processing. I do not know right away how the files from WebDNA look > like but probably they are ready to send? > > In most environments the access to the mailserver is an > organizational or security-related problem. You need either a > direct connection or FTP to that machine. You need the permissions > to write to the send folder or you write it to another folder and > run something like a Perl script which moves your files to the send > folder. > > Perhaps it is a better idea to setup a mailserver just for that. I > guess any old machine can handle that if it has no other duties. A > dedicated SMTP server can be made pretty secure behind a firewall. > > ___ > Peter Ostry > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list
. > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to digest@talk.smithmicro.com> > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Associated Messages, from the most recent to the oldest:
I think I understand better. The sendmail program is on a different server. I guess that can get bogged down with all the lookups and other things it has to do. The sendmail command on WebDNA was filling my web server's hard drive. I can throttle the command on the web server to slow the filling of the hard disk. I think the Emailer program that connects the two (the webDNA files to the sendmail mail server) can also be throttled so as to not overwhelm the web or email servers. There is a preference that can be set. Thanks, Bill On Dec 27, 2005, at 11:29 AM, Peter Ostry wrote: > On 27.12.2005, at 14:13, William DeVaul wrote: > >> I think sendmail only writes to a folder and then another program >> trickles the emails out. I guess one trick is to make sure the >> email server can handle the rate at which WebDNA sends the emails. > > I was referring to sendmail as the standard Unix mailserver. > "sendmail" is the name of that program which comes with almost > every Unix distribution. The sendmail in WebDNA is something like a > synonyme and can lead to any mailserver (not the best name for a > command...) But you are right, the command writes files to a folder > from where they get transferred or collected from a mailserver, I > don't know the details. > > >> Do you have any experience with writing the emails to the email >> server directly? I'm not sure I can do that now, but I'd like to >> know where to begin. > > Yes, we do that with mass emails from PHP based webservers. PHP > doesn't send as brutally as WebDNA but mass mailing from a > webserver isn't a good idea. The machine goes up to 85% CPU load. > That is not really bad on a Unix server but it isn't fine either. > That's why we go directly to the mailserver. > > Our mailserver is Communigate Pro and it is inhouse. Currently we > send our mails from PHP servers over direct connection (via a shell > command) to a folder on the mailserver. A cron job runs on the > mailserver which puts the files into the send folder via a Perl > script. Actually there are different Perl scripts. Version A > handles a sent address list and just one mail file for non- > personalized mails where we use the mailing list function of the > mailserver. Version B handles individual files for personalized > mails, they are sent as single mails. I am not really happy with > that and would prefer to transfer the files via FTP. We haven't > checked all security issues yet but that would be more reliable > than the current way. If it is to dangerous we plan to set up a > separate SMTP server. > > It depends on your mailserver if you can do it or not. If it > delivers mails out of a folder you can put your mailfiles in that > folder. They must be complete mailfiles folowing the SMTP > specifications (including the header) because they are sent without > processing. I do not know right away how the files from WebDNA look > like but probably they are ready to send? > > In most environments the access to the mailserver is an > organizational or security-related problem. You need either a > direct connection or FTP to that machine. You need the permissions > to write to the send folder or you write it to another folder and > run something like a Perl script which moves your files to the send > folder. > > Perhaps it is a better idea to setup a mailserver just for that. I > guess any old machine can handle that if it has no other duties. A > dedicated SMTP server can be made pretty secure behind a firewall. > > ___ > Peter Ostry > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to digest@talk.smithmicro.com> > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
William DeVaul
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