SMTP Message Handled as Spam When To and From Domains Are the Same

[John]

When I submit a message to our SMTP server where the To and From
addresses share the same domain, such as (e-mail address removed) and
(e-mail address removed), the recipient's Outlook instance sends the
message to Junk Mail. If I change the sender's address to something
like (e-mail address removed), the message is delivered to Inbox.

Outlook version is 2003 SP3 (11.8169.8172).

Junk mail options are as follows: protection is Low; don't turn on
links in messages that might connect to unsafe or fraudulent sites is
true; no safe senders, safe recipients, blocked senders, blocked top-
level domains, or blocked encodings are specified. (These are the
defaults, I believe.)

I know this is the Outlook client doing this because if I set
protection to No Automatic Filtering the same message sent again stays
in Inbox.

This seems to have started relativley recently, within the past month
or two.

Thanks.

 

[Diane Poremsky [MVP]]

Do you use Exchange server? It may be set to treat SMTP mail from the domain
as spam, as it's a frequent ploy used by spammers.

--
Diane Poremsky [MVP - Outlook]



Outlook Tips by email:
(e-mail address removed)

EMO - a weekly newsletter about Outlook and Exchange:
(e-mail address removed)

You can access this newsgroup by visiting
http://www.microsoft.com/office/community/en-us/default.mspx or point your
newsreader to msnews.microsoft.com.

 

[John]

We do use Exchange, however, the fact that I can cause the message to
be handled properly by changing the junk mail handling protection
level of the Outlook client from Low to No Automatic Filtering
suggests to me that this is not an Exchange issue. Am I mistaken?

Also, I must apologize for leaving out an important piece of
information. The body of my message is HTML. If I change the body to
text, the message is handled correctly and remains in Inbox even
though the To: and From: addresses share the same domain.

Thanks for your response.

Do you use Exchange server? It may be set to treat SMTP mail from the domain
as  spam, as it's a frequent ploy used by spammers.

--
Diane Poremsky [MVP - Outlook]
Outlook Tips:http://www.outlook-tips.net/
Outlook & Exchange Solutions Center:http://www.slipstick.com

Outlook Tips by email:
(e-mail address removed)

EMO - a weekly newsletter about Outlook and Exchange:
(e-mail address removed)

You can access this newsgroup by visitinghttp://www.microsoft.com/office/community/en-us/default.mspxor point your
newsreader to msnews.microsoft.com.

When I submit a message to our SMTP server where the To and From
addresses share the same domain, such as (e-mail address removed) and
(e-mail address removed), the recipient's Outlook instance sends the
message to Junk Mail. If I change the sender's address to something
like (e-mail address removed), the message is delivered to Inbox.

Outlook version is 2003 SP3 (11.8169.8172).

Junk mail options are as follows: protection is Low; don't turn on
links in messages that might connect to unsafe or fraudulent sites is
true; no safe senders, safe recipients, blocked senders, blocked top-
level domains, or blocked encodings are specified. (These are the
defaults, I believe.)

I know this is the Outlook client doing this because if I set
protection to No Automatic Filtering the same message sent again stays
in Inbox.

This seems to have started relativley recently, within the past month
or two.

Thanks.- Hide quoted text -

- Show quoted text -

 

[Diane Poremsky [MVP]]

If using IMF or message screening, Exchange tags the mail with spam
confidence levels and HTML may raise the level, as would sending mail to an
internal address across the SMTP server. Outlook uses the SCL to identify
some spam. You turn off filtering - so outlook doesn't filter.

--
Diane Poremsky [MVP - Outlook]



Outlook Tips by email:
(e-mail address removed)

EMO - a weekly newsletter about Outlook and Exchange:
(e-mail address removed)

You can access this newsgroup by visiting
http://www.microsoft.com/office/community/en-us/default.mspx or point your
newsreader to msnews.microsoft.com.

We do use Exchange, however, the fact that I can cause the message to
be handled properly by changing the junk mail handling protection
level of the Outlook client from Low to No Automatic Filtering
suggests to me that this is not an Exchange issue. Am I mistaken?

Also, I must apologize for leaving out an important piece of
information. The body of my message is HTML. If I change the body to
text, the message is handled correctly and remains in Inbox even
though the To: and From: addresses share the same domain.

Thanks for your response.

Do you use Exchange server? It may be set to treat SMTP mail from the
domain
as spam, as it's a frequent ploy used by spammers.

--
Diane Poremsky [MVP - Outlook]
Outlook Tips:http://www.outlook-tips.net/
Outlook & Exchange Solutions Center:http://www.slipstick.com

Outlook Tips by email:
(e-mail address removed)

EMO - a weekly newsletter about Outlook and Exchange:
(e-mail address removed)

You can access this newsgroup by
visitinghttp://www.microsoft.com/office/community/en-us/default.mspxor
point your
newsreader to msnews.microsoft.com.

When I submit a message to our SMTP server where the To and From
addresses share the same domain, such as (e-mail address removed) and
(e-mail address removed), the recipient's Outlook instance sends the
message to Junk Mail. If I change the sender's address to something
like (e-mail address removed), the message is delivered to Inbox.

Outlook version is 2003 SP3 (11.8169.8172).

Junk mail options are as follows: protection is Low; don't turn on
links in messages that might connect to unsafe or fraudulent sites is
true; no safe senders, safe recipients, blocked senders, blocked top-
level domains, or blocked encodings are specified. (These are the
defaults, I believe.)

I know this is the Outlook client doing this because if I set
protection to No Automatic Filtering the same message sent again stays
in Inbox.

This seems to have started relativley recently, within the past month
or two.

Thanks.- Hide quoted text -

- Show quoted text -