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Sun Oct 7 07:16:56 EDT 2012
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Jesse Salens wrote:
> I used to run into this issue frequently when using AT&T at customer sites
> with a company I used to work for. Our installed servers needed to relay
> mail back to us but AT&T blocks port 25 by default. You may want to opt
> out
> of port 25 blocking to send directly instead of through AT&T's mail
> servers.
>
> http://helpme.att.net/servabuse.php
>
> Under abuse type, select **Opt out Port 25. Wait 30 minutes and cycle your
> modem.
>
> -Jesse
>
> On Wed, Oct 15, 2008 at 2:19 AM, Michael ORourke
> <mrorourke at earthlink.net>wrote:
>
>> Lug nuts,
>>
>> Not sure if any of you have run into this recently... but I was setting
>> up
>> a
>> postfix email server which is on an AT&T DSL (with a dynamic IP) and I
>> configured it with SMTP AUTH, so that it could use AT&T's smtp server as
>> a
>> smart host (relay host). But I keep getting the following error...
>> ###snipped from /var/log/mail.info
>> Oct 14 18:37:54 ark postfix/smtp[14772]: EFD0A106309:
>> to=<mrorourke at XXXXXXXX.net>, relay=68.142.229.41[68.142.229.41]:25,
>> delay=246648, delays=246647/0.13/0.71/0.18, dsn=5.0.0, status=bounced
>> (host
>> 68.142.229.41[68.142.229.41] said: 553 From: address not verified; see
>> http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html
>> (in
>> reply to MAIL FROM command))
>> ###End
>> The From address would be something like root at server.mydomain.net or
>> mike at server.mydomain.net.
>>
>> Now if I change the masquerading settings so that the From address gets
>> rewritten to a valid address on the AT&T network, such as
>> myusername at sbcglobal.net , then it works. But I don't want everything
>> to
>> be
>> rewritten in that manner. Eventually I would like to host our own
>> domain's
>> email. But this doesn't seem possible.
>>
>> Maybe the solution is to change DSL providers???
>>
>> -Mike
>>
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----
Dan DeSloover
dand at zifferent.net
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