[DUG] Problems with TIdsmtp

[Alister Christie]

I've been having problems with xtras smtp servers.  We have an 
application that sends out emails to large numbers of people (up to 
thousands) via BCC.  The problem occurs when sending email via xtras 
smtp servers, as they reject any recipient (indy raises an exception) 
that is not a valid xtra customer (NotAValidXtraCustomer at xtra.co.nz for 
instance).  This wasn't a problem when using indy 9 as I would just 
remove the person from the BCC list and resend the email - nice and 
transparant to the user.  However since upgrading to indy 10, it has 
started sending blank emails to every recipient up to the invalid one.

Has anyone else seen this problem?

I have a number of solutions:
1) Go back to indy 9 - I'd rather not do this as I upgraded to indy 10 
to solve a different problem (although this one is much bigger).
2) Send a seperate email to each person in the BCC list (this could be 
slow if sending to 500 people - although I already have to break up the 
email anyway as xtra have a limit of 100 recipients and paradise have a 
limit of 50)

Any Ideas or Suggestions?


-- 
Alister Christie
Computers for People
Ph: 04 471 1849 Fax: 04 471 1266
http://www.salespartner.co.nz
PO Box 13085
Johnsonville
Wellington