Batching SMTP mails

[Ron Bullman]

Ben,

Better use such mail server which is capable of handling mailing lists.


Ron

 

[Ben Dilts]

My SQL Server/VB.NET application needs the ability to send
out a newsletter to a few hundred people at a time. Also,
my employer would rather not have all their addresses
appear in the "to" line, or even something like it via
BCC. So, I create a MailMessage object, populate
everything except the "To" field, then loop through the
addresses doing:

msg.To = nextperson.email
SmtpMail.Send(msg)

or something very much like that. Unfortunately, the
speed using this approach is abominable; it can send about
80 emails per minute.

Does anyone know a way to speed this up?



~BenDilts( void );

 

[Teemu Keiski]

Well, couldn't you use threading or asynchronous methods (perhaps callbacks)
to do the task so that it won't disturb the main app?

--
Teemu Keiski
MCP, Designer/Developer
Mansoft tietotekniikka Oy
http://www.mansoft.fi

AspInsiders Member, www.aspinsiders.com
ASP.NET Forums Moderator, www.asp.net
AspAlliance Columnist, www.aspalliance.com

 

[Jacky Kwok]

My SQL Server/VB.NET application needs the ability to send
out a newsletter to a few hundred people at a time. Also,
my employer would rather not have all their addresses
appear in the "to" line, or even something like it via
BCC. So, I create a MailMessage object, populate
everything except the "To" field, then loop through the
addresses doing:

msg.To = nextperson.email
SmtpMail.Send(msg)

or something very much like that. Unfortunately, the
speed using this approach is abominable; it can send about
80 emails per minute.

Does anyone know a way to speed this up?



~BenDilts( void );

The "MailMessage.To" should accept "A semicolon-delimited list of e-mail
addresses".

i.e.
msg.To = "address1;address2;....";

refer
"http://msdn.microsoft.com/library/d...frlrfsystemwebmailmailmessageclasstotopic.asp"

Could you try does it improve the speed?

 

[Jacky Kwok]

The "MailMessage.To" should accept "A semicolon-delimited list of e-mail
addresses".

i.e.
msg.To = "address1;address2;....";

refer
"http://msdn.microsoft.com/library/d...frlrfsystemwebmailmailmessageclasstotopic.asp"


Could you try does it improve the speed?

Sorry, it is not what you want. I did not read your message detail.