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Home > Archive > IIS and SMTP > May 2005 > SMTP Server won't send BCC from a webmail app.
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SMTP Server won't send BCC from a webmail app.
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| Unabogie 2005-05-25, 8:52 pm |
| Hi, I'm not sure where the problem is, so I thought I'd start here. I have
a simple mail app created in vb.net. I am trying to make an app to send out
our company newsletter to several thousand people.
In my app, I am just sending them to three people (just the site admins).
The only email that arrives is the one in the to field, but none in the BCC
field. Each email is separated by a semi-colon.
The code side is pretty simple, and it works on other servers.
Does this sound like an SMTP server issue? How might I test out the server
to see if the same email could be sent another way?
| |
| Jeff Cochran 2005-05-26, 2:52 am |
| On Thu, 26 May 2005 01:54:38 GMT, "Unabogie"
<unabogie@no.spam.hotmail.com> wrote:
>Hi, I'm not sure where the problem is, so I thought I'd start here. I have
>a simple mail app created in vb.net. I am trying to make an app to send out
>our company newsletter to several thousand people.
>
>In my app, I am just sending them to three people (just the site admins).
>The only email that arrives is the one in the to field, but none in the BCC
>field. Each email is separated by a semi-colon.
>
>The code side is pretty simple, and it works on other servers.
>
>Does this sound like an SMTP server issue? How might I test out the server
>to see if the same email could be sent another way?
Not something that SMTP would normally be concerned with, have you
checked the logs to see what got sent? Checked headers of the message
created?
Jeff
| |
| Unabogie 2005-05-26, 2:52 am |
| "Jeff Cochran" <jeff.nospam@zina.com> wrote in message
news:42a94adc.106092921@msnews.microsoft.com...
> On Thu, 26 May 2005 01:54:38 GMT, "Unabogie"
> <unabogie@no.spam.hotmail.com> wrote:
>
>
> Not something that SMTP would normally be concerned with, have you
> checked the logs to see what got sent? Checked headers of the message
> created?
>
> Jeff
Thanks, Jeff. It appears in the logs that the email was sent. But no one
on the list received the email. What should I look for (sorry, I'm new to
smtp admin. We just switched to a new server where I am responsible for
handling this.)
| |
| Peter D. Hipson 2005-05-26, 6:00 pm |
| On Thu, 26 May 2005 01:54:38 GMT, "Unabogie"
<unabogie@no.spam.hotmail.com> wrote:
>Hi, I'm not sure where the problem is, so I thought I'd start here. I have
>a simple mail app created in vb.net. I am trying to make an app to send out
>our company newsletter to several thousand people.
>
>In my app, I am just sending them to three people (just the site admins).
>The only email that arrives is the one in the to field, but none in the BCC
>field. Each email is separated by a semi-colon.
>
>The code side is pretty simple, and it works on other servers.
>
>Does this sound like an SMTP server issue? How might I test out the server
>to see if the same email could be sent another way?
>
IIRC the client does the work, not SMTP. Could a virus/spam filter be
eating them?
PeterD, the Darkstar Network
To email, fix my address!
ExpertZone!
| |
| Unabogie 2005-05-26, 6:00 pm |
| "Peter D. Hipson" <mcn01 at hipson dot net> wrote in message
news:06kb91hkbaa174en6d37ataa14v1aa71hm@
4ax.com...
> On Thu, 26 May 2005 01:54:38 GMT, "Unabogie"
> <unabogie@no.spam.hotmail.com> wrote:
>
>
>
> IIRC the client does the work, not SMTP. Could a virus/spam filter be
> eating them?
Hmmm. Well, speaking for myself, I am sending a copy to each of my email
addresses. I am using Outlook express to retrieve my emails, and I don't
know of any spam filter in use. Since I am using BCC, wouldn't the email
client view it as a singular email?
> PeterD, the Darkstar Network
> To email, fix my address!
> ExpertZone!
| |
| Peter D. Hipson 2005-05-27, 7:57 am |
| On Thu, 26 May 2005 14:48:51 GMT, "Unabogie"
<unabogie@no.spam.hotmail.com> wrote:
>
>Hmmm. Well, speaking for myself, I am sending a copy to each of my email
>addresses. I am using Outlook express to retrieve my emails, and I don't
>know of any spam filter in use. Since I am using BCC, wouldn't the email
>client view it as a singular email?
>
Humm, I am not sure I understand the question, but here goes:
BCC works (in the client, the SMTP server doesn't get involved) in
that outlook (or whatever client you are using, Agent, Thumderbird,
etc.)
---Blind CC----
You send a BCC to Bob, John, Mary and Paul.
Then Outlook (or agent, or Thunderbird, etc.) takes that email, and
creates four emails.
The email to Bob contains only Bob's name/email in teh addresses.
The email to John contains only John's name/email in the addresses.
The email to Mary contains only Mary's name/email in the addresses.
and
The email to Paul contains only Pauls name/email in the addresses.
With BCC, the CC fields are left blank.
---Regular CC: ----
You send a (regular) CC to Bob, John, Mary and Paul.
Then Outlook (or agent, or Thunderbird, etc.) takes that email, and
creates four emails.
The email to Bob contains Bob's name/email in the addresses, and
John, Mary and Paul in the CC field. .
The email to John contains John's name/email in the addresses, and
Bob, Mary and Paul in the CC field. .
Same setup for the others. Again four emails, but with regular CC
messages the CC field(s) are filled in.
Regardless of BCC or CC, the server sees four emails (one for each of
the four). The difference is taht BCC won't fill in the CC field (so
no reply all!) and since the CC field is blank the receiving end
doesn't know about the BCC part.
That is a simplifiation soemwhat, as you can mix these two models.
PeterD, the Darkstar Network
To email, fix my address!
ExpertZone!
| |
| Unabogie 2005-05-27, 5:56 pm |
| "Peter D. Hipson" <mcn01 at hipson dot net> wrote in message
news:4a3e91lv95j3k8dcdrh0um5spr7ig6ff0o@
4ax.com...
> On Thu, 26 May 2005 14:48:51 GMT, "Unabogie"
> <unabogie@no.spam.hotmail.com> wrote:
>
>
> Humm, I am not sure I understand the question, but here goes:
>
> BCC works (in the client, the SMTP server doesn't get involved) in
> that outlook (or whatever client you are using, Agent, Thumderbird,
> etc.)
>
> ---Blind CC----
>
> You send a BCC to Bob, John, Mary and Paul.
>
> Then Outlook (or agent, or Thunderbird, etc.) takes that email, and
> creates four emails.
>
> The email to Bob contains only Bob's name/email in teh addresses.
> The email to John contains only John's name/email in the addresses.
> The email to Mary contains only Mary's name/email in the addresses.
> and
> The email to Paul contains only Pauls name/email in the addresses.
> With BCC, the CC fields are left blank.
>
> ---Regular CC: ----
> You send a (regular) CC to Bob, John, Mary and Paul.
>
> Then Outlook (or agent, or Thunderbird, etc.) takes that email, and
> creates four emails.
>
> The email to Bob contains Bob's name/email in the addresses, and
> John, Mary and Paul in the CC field. .
> The email to John contains John's name/email in the addresses, and
> Bob, Mary and Paul in the CC field. .
> Same setup for the others. Again four emails, but with regular CC
> messages the CC field(s) are filled in.
>
>
> Regardless of BCC or CC, the server sees four emails (one for each of
> the four). The difference is taht BCC won't fill in the CC field (so
> no reply all!) and since the CC field is blank the receiving end
> doesn't know about the BCC part.
>
> That is a simplifiation soemwhat, as you can mix these two models.
>
> PeterD, the Darkstar Network
> To email, fix my address!
> ExpertZone!
Follow up. I tried it on another server, one with considerably less load,
and set up the basic smtp, and it's working.
FWIW
Thanks, everyone.
| |
| Jeff Cochran 2005-05-27, 8:48 pm |
| On Thu, 26 May 2005 05:10:30 GMT, "Unabogie"
<unabogie@no.spam.hotmail.com> wrote:
>"Jeff Cochran" <jeff.nospam@zina.com> wrote in message
>news:42a94adc.106092921@msnews.microsoft.com...
>
>Thanks, Jeff. It appears in the logs that the email was sent. But no one
>on the list received the email. What should I look for (sorry, I'm new to
>smtp admin. We just switched to a new server where I am responsible for
>handling this.)
If the messages got sent, it's not your end that's the problem.
Perhaps spam software on their end. Try composing three separate
emails in your app.
Jeff
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