Undeliverable replies

[Doug Chunyo]

I have a domain on Yahoo and use its mail service with
Outlook as my front end.

I can send mail to anybody without any troubles, but if I
attempt to reply to certain addresses I receive a message
from the system administrator,
"Your message did not reach some or all of the intended
recipients.

Subject: RE: Team Schedule
Sent: 8/25/2003 3:30 PM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 8/25/2003 3:30 PM
550 relaying mail to us.ibm.com is not
allowed"

I only receive this message if I "REPLY" to the sender.
If I send a message to the same address without replying,
the message goes without problems.

Has anybody heard of such a problem?

 

[Doug Chunyo]

-----Original Message-----

Thanks for the advice, now I get to contact my ISP.

Subject: RE: Team Schedule
Sent: 8/25/2003 3:30 PM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 8/25/2003 3:30 PM
550 relaying mail to us.ibm.com is not
allowed"

I only receive this message if I "REPLY" to the sender.
If I send a message to the same address without replying,
the message goes without problems.

Has anybody heard of such a problem?

Which SMTP server do you have configured in the e-mail account that you
are using to send this e-mail? Your ISP's SMTP server or Yahoo's? If
you are paying for Yahoo's POP3 service (and if it then includes an SMTP
server), it may be that your ISP will not relay the SMTP traffic across
their domain to Yahoo's SMTP server. When you reply, you use the same
e-mail account as the one through which the e-mail was received. When
you compose new e-mail, you will use your default e-mail account. If
you have an e-mail account for Yahoo which specifies Yahoo's SMTP server
and that is the account through which you receive your Yahoo e-mails
then your replies will try to use Yahoo's SMTP server. If you have a
separate [default] e-mail account for your ISP then new e-mails will use
their SMTP server defined in that e-mail account.

For example, if you have:

ISP e-mail account (set as default e-mail account):
POP3 = pop3.myisp.com
SMTP = smtp.myisp.com

Yahoo e-mail account (I don't Yahoo server names):
POP3 = inbound.yahoo.com
SMTP = outbound.yahoo.com

Then when you receive e-mail through your Yahoo account, replies will
also use that same e-mail account and so they will get sent using
Yahoo's SMTP server (outbound.yahoo.com). It is likely that your ISP
doesn't want to be a relay for SMTP traffic and thus get abused by
spammers or folks trying to hide from where their e-mail originates.
Change your e-mail accounts as follows:

ISP e-mail account (set as default):
POP3 = pop3.myisp.com
SMTP = smtp.myisp.com

Yahoo e-mail account:
POP3 = inbound.yahoo.com
SMTP = smtp.myisp.com

That way you will be using your ISP's SMTP server for your new e-mails
sent out using your default e-mail account (for your ISP) and your ISP's
SMTP server will also get used for replies to e-mails received through
your Yahoo e-mail account.

--
_________________________________________________________ ___
** Share with others. Post replies in the newsgroup.
** If present, remove all "-nix" from my email address.
_________________________________________________________ ___



.

 

[Vanguard]

-----Original Message-----

Thanks for the advice, now I get to contact my ISP.

Subject: RE: Team Schedule
Sent: 8/25/2003 3:30 PM

The following recipient(s) could not be reached:

'(e-mail address removed)' on 8/25/2003 3:30 PM
550 relaying mail to us.ibm.com is not
allowed"

I only receive this message if I "REPLY" to the sender.
If I send a message to the same address without replying,
the message goes without problems.

Has anybody heard of such a problem?

Which SMTP server do you have configured in the e-mail account that
you are using to send this e-mail? Your ISP's SMTP server or
Yahoo's? If you are paying for Yahoo's POP3 service (and if it then
includes an SMTP server), it may be that your ISP will not relay the
SMTP traffic across their domain to Yahoo's SMTP server. When you
reply, you use the same e-mail account as the one through which the
e-mail was received. When you compose new e-mail, you will use your
default e-mail account. If you have an e-mail account for Yahoo
which specifies Yahoo's SMTP server and that is the account through
which you receive your Yahoo e-mails then your replies will try to
use Yahoo's SMTP server. If you have a separate [default] e-mail
account for your ISP then new e-mails will use their SMTP server
defined in that e-mail account.

For example, if you have:

ISP e-mail account (set as default e-mail account):
POP3 = pop3.myisp.com
SMTP = smtp.myisp.com

Yahoo e-mail account (I don't Yahoo server names):
POP3 = inbound.yahoo.com
SMTP = outbound.yahoo.com

Then when you receive e-mail through your Yahoo account, replies will
also use that same e-mail account and so they will get sent using
Yahoo's SMTP server (outbound.yahoo.com). It is likely that your ISP
doesn't want to be a relay for SMTP traffic and thus get abused by
spammers or folks trying to hide from where their e-mail originates.
Change your e-mail accounts as follows:

ISP e-mail account (set as default):
POP3 = pop3.myisp.com
SMTP = smtp.myisp.com

Yahoo e-mail account:
POP3 = inbound.yahoo.com
SMTP = smtp.myisp.com

That way you will be using your ISP's SMTP server for your new
e-mails sent out using your default e-mail account (for your ISP)
and your ISP's SMTP server will also get used for replies to e-mails
received through your Yahoo e-mail account.

--
_________________________________________________________ ___
** Share with others. Post replies in the newsgroup.
** If present, remove all "-nix" from my email address.
_________________________________________________________ ___



.

I also thought of something else. Do you have your e-mail account setup
to authenticate to Yahoo's SMTP server? If not, Yahoo might consider
you a spammer trying to relay e-mail to their SMTP server from a
non-Yahoo domain. It is possible that your ISP will allow SMTP traffic
to pass over its domain to an SMTP server off of their domain. But then
maybe the Yahoo server wants to know you really are who you claim to be
since you would always be coming in from off of Yahoo's domain. So see
if configuring the SMTP server for authentication for Yahoo's SMTP
server in your e-mail might get it working. ISPs are increasingly not
permitting SMTP traffic to pass over their network to an off-domain SMTP
server and that's why I figured that was the likely cause of your
problem. ISPs are also increasingly not accepting SMTP requests to
their SMTP server unless the client is also on their network; i.e., they
won't accept off-domain SMTP requests to their SMTP server. However,
Yahoo's SMTP server would almost be guaranteed to be on a different
network (i.e., Yahoo's) than the client connecting to it (from the
user's ISP) and would have to permit off-domain connects to their SMTP
server - but they may force you to authenticate to it.