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DSN 4.4.2? conversation ... timed out while sending?

This is a discussion on DSN 4.4.2? conversation ... timed out while sending? within the alt.comp.mail.postfix forums, part of the Mail Servers and Related category; I run my own postfix mail server and have a static IP address with my ISP. I can send email ...


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  #1 (permalink)  
Old 04-28-2009
Troy Piggins
 
Posts: n/a
Default DSN 4.4.2? conversation ... timed out while sending?

I run my own postfix mail server and have a static IP address
with my ISP. I can send email to almost anyone and not have a
problem, but when I try to send emails to friends that have
bigpond email addresses I get these sort of error
message/bounces:

Apr 28 16:34:43 piggo postfix/error[18053]: 1844A271A004:
to=<XYZ@bigpond.net.au>, relay=none, delay=0.03,
delays=0.02/0/0/0.01, dsn=4.4.2, status=deferred (delivery
temporarily suspended: conversation with
extmail.bpbb.bigpond.com[61.9.189.122] timed out while sending
message body)

This has been happening for a few months now. I can only assume
that bigpond is blocking my IP address range, probably in some
misguided attempt to stop spam.

Is there any way for me to adjust postfix settings so it doesn't
timeout? Or is this a setting at their end and I can't do
anything about it?

--
Troy Piggins
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  #2 (permalink)  
Old 04-28-2009
Martin Gregorie
 
Posts: n/a
Default Re: DSN 4.4.2? conversation ... timed out while sending?

On Tue, 28 Apr 2009 16:55:05 +1000, Troy Piggins wrote:

> I run my own postfix mail server and have a static IP address with my
> ISP. I can send email to almost anyone and not have a problem, but when
> I try to send emails to friends that have bigpond email addresses I get
> these sort of error message/bounces:
>
> Apr 28 16:34:43 piggo postfix/error[18053]: 1844A271A004:
> to=<XYZ@bigpond.net.au>, relay=none, delay=0.03, delays=0.02/0/0/0.01,
> dsn=4.4.2, status=deferred (delivery temporarily suspended: conversation
> with extmail.bpbb.bigpond.com[61.9.189.122] timed out while sending
> message body)
>
> This has been happening for a few months now. I can only assume that
> bigpond is blocking my IP address range, probably in some misguided
> attempt to stop spam.
>

Does this happen every time you send mail to a particular address?

Does the mail eventually (after an hour or two) get delivered?

> Is there any way for me to adjust postfix settings so it doesn't
> timeout? Or is this a setting at their end and I can't do anything
> about it?
>

Is your configured timeout particularly short?


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
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  #3 (permalink)  
Old 04-28-2009
Troy Piggins
 
Posts: n/a
Default Re: DSN 4.4.2? conversation ... timed out while sending?

* Martin Gregorie wrote :
> On Tue, 28 Apr 2009 16:55:05 +1000, Troy Piggins wrote:
>
> [---=| Quote block shrinked by t-prot: 10 lines snipped |=---]
>>
>> This has been happening for a few months now. I can only assume that
>> bigpond is blocking my IP address range, probably in some misguided
>> attempt to stop spam.

>
> Does this happen every time you send mail to a particular address?


Not just a particular address. Every time I send mail to anyone
at bigpond.net.au - my parents, my aunty, and several friends.
Bigpond is probably the largest ISP in Australia.

> Does the mail eventually (after an hour or two) get delivered?


No. My server keeps trying, then eventually I'll get a failed
notice.

>> Is there any way for me to adjust postfix settings so it doesn't
>> timeout? Or is this a setting at their end and I can't do anything
>> about it?

>
> Is your configured timeout particularly short?


I haven't configured it, so it's just the default I guess.
Ubuntu distro. Is smtp_connect_timeout the relevant one?
Default is 30s. Or is it one of the smtp_data_... ones?
So many timeouts, sorry.

--
Troy Piggins
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  #4 (permalink)  
Old 04-28-2009
Gary R. Schmidt
 
Posts: n/a
Default Re: DSN 4.4.2? conversation ... timed out while sending?

Troy Piggins wrote:
> I run my own postfix mail server and have a static IP address
> with my ISP. I can send email to almost anyone and not have a
> problem, but when I try to send emails to friends that have
> bigpond email addresses I get these sort of error
> message/bounces:
>
> Apr 28 16:34:43 piggo postfix/error[18053]: 1844A271A004:
> to=<XYZ@bigpond.net.au>, relay=none, delay=0.03,
> delays=0.02/0/0/0.01, dsn=4.4.2, status=deferred (delivery
> temporarily suspended: conversation with
> extmail.bpbb.bigpond.com[61.9.189.122] timed out while sending
> message body)
>
> This has been happening for a few months now. I can only assume
> that bigpond is blocking my IP address range, probably in some
> misguided attempt to stop spam.
>

Bigpong may be blocking you because when they do a reverse lookup on the
originating IP they are getting an ISP-related name (something like
"1234-dial-up.isp.com.au", not a *real* domain, even if you do have a
domain name tied to your IP with MX records and all that.

Most likely, however, is that Bigpong have blocked all of iiNet's IP
addresses except for their mail servers.

A simple work around is to relay all mail via your ISP, frex my main.cf
has "relayhost = [mail.tpg.com.au]" and everything gets through fine, now.

Cheers,
Gary B-)
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