[mso] Re: Is it Outlook or my POP3 server?
- From: "testtroy" <testtroy@xxxxxxxxxxxx>
- To: <mso@xxxxxxxxxxxxx>
- Date: Tue, 22 Apr 2003 18:32:48 -0500
This error will also occur if your ISP requires an IP address authentication to
send out email. I know that a lot of the ISPs are changing their servers to
authenticate IPs when using an email client such as Outlook, Outlook Express,
Eudora, etc... The way you can fix this is as follows:
http://tinyurl.com/a3gn
Background:
SMTP is the protocol used by Outlook Express and other Internet clients to send
mail to a server for onward delivery. Typically SMTP is an unauthenticated
protocol i.e. it requires no login (username and password or similar).
Therefore it would be possible for someone to connect to an SMTP server and
spoof (pretend to be someone else when sending a message) and / or send spam
(sending unsolicited mail to large numbers of users).
POP3, which is a protocol used by many clients like OE to retrieve (download)
new mail from a server, is an authenticated protocol i.e. it requires a
username and password in order to log in. The oceanfree service has, as part of
our anti-spam capability, a security feature that makes use of this
authentication. In line with many other email services, we require customers to
check for new mail first (using POP3) so that attempts to spoof or send spam
mail can be managed.
Example 1 - the reported error is of the following form:
"The message could not be sent because one of the recipients was rejected by
the server. The rejected e-mail address was 'username@*******.net'. Subject
'subject', Account: '******** account', Server: 'smtp.********.net', Protocol:
SMTP, Server Response: '553. To send mail, first check your mail with a valid
POP account; this prevents unauthorized SPAM relaying. (#5.7.1)', Port: 25,
Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC79"
Solution: If you start Outlook Express after connecting to the Oceanfree
service in general you will not experience this error message. This is because
OE at start-up automatically logs on to the server to download email prior to
sending any email thereby establishing the authorisation of the sender.
Similarly, if you send your email by doing a full Send/Receive in OE you should
not experience any difficulty. If you wish to be able to send messages without
doing a full Send/Receive or if you wish to have Outlook Express active on your
PC prior to connecting to the Oceanfree service we recommend the following
modification to your Outlook Express configuration.
Start Outlook Express and go to Tools menu option and select Accounts. Click on
your oceanfree account and choose Properties. Select the Servers tab. At the
bottom of this tab in an area titled "Outgoing Mail Server" untick the check
box titled "My server requires authentication". Save the new setting and this
will ensure that the next time you use OE it will authorise itself to the mail
server in all circumstances thereby avoiding this error message.
Example 2 - the reported error is of the following form:
"The message could not be sent because one of the recipients was rejected by
the server. The rejected e-mail address was 'test@xxxxxxxxxxx' . Subject 'The
monthly collection', Account: 'Test (*******.net)', Server:
'smtp.********.net', Protocol: SMTP, Server Response: '550 relaying to
prohibited by administrator', Port: 25, Secure(SSL): No, Server Error: 550,
Error Number: 0x800CCC79
Solution:You are required to enter the SMTP server of the ISP you are connected
to at the time of sending or connect to Oceanfree.net to send through our SMTP
server to resolve this issue.
Hope this helps.
Troy
---------- Original Message ----------------------------------
From: "Tim Schoon" <gamemaster@xxxxxxxxx>
Reply-To: mso@xxxxxxxxxxxxx
Date: Tue, 22 Apr 2003 14:15:20 -0400
>
>She has to check for mail before she will be allowed to send. This is called
>POP authentication and it is the POP3 server, not Outlook.
>
>
>Tim :-) http://nbajammer.speckz.org
>ICQ # 5756489 Yahoo: nba_jammer77 AIM: nbajam77 MSN: nbajam77
>----- Original Message -----
>From: <Phreding@xxxxxxx>
>To: <mso@xxxxxxxxxxxxx>
>Sent: Tuesday, April 22, 2003 10:00 AM
>Subject: [mso] Is it Outlook or my POP3 server?
>
>
>> The following recipient(s) could not be reached:
>
>> 'xxxxx@xxxxxxxxxxxxxx' on 4/17/2003 9:32 AM
>>
>> 553 To send mail, first check your mail with a valid POP
>> account; this prevents unauthorized SPAM relaying. (#5.7.1)
>
>> A church staff member is having this problem on her MS Office Xp laptop.
>> It frequently gets connected to "unknown-configured" intranets and
>> exhibits this problem usually after getting back to her
>> "known-configured" intranet that is serviced via a gateway to the
>> internet.
>
>
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