Topic 'Postfix or Sendmail and SMTP auth with ATT' in forum 'AT&T U-verse' - dslreports.com http://www.dslreports.com/forum/Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150259 en Fri, 10 Feb 2012 04:42:13 EDT Fri, 10 Feb 2012 04:42:13 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23569157
Inbound port 25 is not blocked, and never has been blocked as far as I know.

I run an smtp server for testing purposes. And I regularly see smtp connections logged - usually spammers looking for an open relay.
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AT&T Uverse; Zyxel NBG334W router (behind the 2wire gateway); openSuSE 11.0; firefox 3.0.16]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23569157 Thu, 31 Dec 2009 08:14:13 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23568644
I have outgoing SMTP with my dynamic DNS provider that gives me the reverse lookup. Send is no problem. But receive, nada.

Any suggestions?]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23568644 Thu, 31 Dec 2009 01:58:54 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23343119
Thanks]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23343119 Sun, 15 Nov 2009 02:53:43 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23336427
This is fantastic since I've now found out that the smtpauth.sbcglobal.net MTA is somehow connected to a prodigy.net address block. Services like hotmail were blocking emails when I used that gateway, they were marked as being "spammy".

So I'm better off using direct SMTP access out of my server anyhow.

Thanks for the comments and help everyone!

bill]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23336427 Fri, 13 Nov 2009 12:17:51 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23307569
I am on basic residential and no longer have a port 25 block.
But some sites can still reject my mail.

When I was static with SBC, they gave me a static but in their infinite wisdom, assigned my static IP within a block of dynamic residential IPs.

Nice eh? :huh:

I hit many RBLs trying to send email out eventhough I was legit.

-JD]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23307569 Sat, 07 Nov 2009 19:05:12 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23307521
If I could be allowed to "go direct" via UVerse I'd do that, but I haven't heard that this is an option -- even with a statically assigned block. Someone please correct me if I'm wrong -- that'd be the easiest option for us paying customers.

For now, I'm happy with the workaround I identified. I can source the messages that I need to. But in the back of my head I'm always going to be worried that the unspoken "policy" might change on that server and it'll get locked down/changed. I don't like the fact that AT&T servers expose my credentials in the clear ove the wire and/or don't support the more standard SMTP-TLS, but this is a minor nit in the grand scheme of things.

Cheers,

Bill]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23307521 Sat, 07 Nov 2009 18:52:22 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23306331
If we are able to accurately SMTP-AUTH to our ISP, then our ISP should pass whatever email we send out, regardless of what the FROM says. I cant even send an email from home with my work email address as the RETURN/FROM, unless its listed within Yahoo.

This logic is as bad as people that screen incoming yahoo/gmail/aol and so on email and make sure the 'connecting' machine is one of their own...That does reduce spam, but also restricts a good deal of legit email.

If I am AUTH'd into the ISP and someone complains there is SPAM spewing from my machines, this would be a trivial traceback.

Oh well. :huh:

-JD]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23306331 Sat, 07 Nov 2009 12:59:42 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23306216 said by lonebandit See Profileany email you want to send out appears to have to be verified with the yahoo web mail.

[bquote= djrobx See Profile :

You can thank your friendly neighborhood spammers for this feature.
yes, this is true, you must verify every address that you intend to use when sending FROM through our servers. this is a restriction placed by Yahoo!, not at&t.

In general, the methods you have described that work, are not supported, and at&t techsupport will be unable to assist you if you need help.
At&t does however offer a pay-for service called Connectech, and they will attempt to assist you in any issues you may incurr.

Please let us know if you have any other questions.
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If you have any questions or concerns, please feel free to email us at uversecare@att.com.
Our goal is to provide you Excellent Customer Service. Hours: Tu-Sa 12-9 CST]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23306216 Sat, 07 Nov 2009 12:28:03 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305754
It -seems- that unless I add an alias email to my yahoo account, I cannot send outgoing email using just any 'from' address. That
You can thank your friendly neighborhood spammers for this feature.
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AT&T U-Hearse
Your funeral. Delivered.
]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305754 Sat, 07 Nov 2009 10:22:50 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305448 said by x509v3:

# Authenticated SMTP servers for Uverse
relayhost = smtpauth.sbcglobal.net:587
See...thats one of my concerns. I know about this 'server' but how long will it be out there? - And why cant we get the others to work?

I run both postfix and sendmail. Prolly one of 3 people around my area that have any clue about sendmail. Sendmail just cant do this out of the box, like postfix can...but I cannot get postfix to work with the PROPER SMTP servers we are supposed to use.

I believe i know part of the reason - any email you want to send out appears to have to be verified with the yahoo web mail. It -seems- that unless I add an alias email to my yahoo account, I cannot send outgoing email using just any 'from' address. That doesnt make sense to me, especially if I had tons of aliases and/or usernames....but its the closest I got to getting postfix to relay 1 message to the proper servers. What got me to that was I could always send email to people using postfix via ATT server as long as I only used my ATT email acct from address.

Since then, I have given up and just do direct end-to-end delivery. So far only 1 site has an issue with that. Craigslist - flags me as dynamic.

If someone figures this out it would be awesome. It is always pointless to call someone at U-Verse support....they never understand this.

-JD]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305448 Sat, 07 Nov 2009 08:13:29 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305200
I'm using postfix 2.1.5 (old), but didn't want to compile and use stunnel.

in main.cf:
# Authenticated SMTP servers for Uverse
relayhost = smtpauth.sbcglobal.net:587
smtp_use_tls = no
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_mechanism_filter = login
smtp_sasl_security_options = noanonymous

create /etc/postfix/sasl_passwd:
smtpauth.sbcglobal.net:587 myUVerseID@att.net:MyPassword

chmod 600 /etc/postfix/sasl_passwd && chown root:root /etc/postfix/sasl_password && postmap hash:/etc/postfix/sasl_passwd
&& postfix reload

Let me know if this does/doesn't work for you too.

Cheers,
bill]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23305200 Sat, 07 Nov 2009 03:11:42 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150741
You can install stunnel, and do it that way. Sendmail would connect unencrypted on localhost, and stunnel would send that to port 465 at the yahoo server, using an encrypted tunnel.
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AT&T dsl; Speedstream 5100b modem; Zyxel NBG334W router; openSuSE 11.0; firefox 3.0.14]]> http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150741 Thu, 08 Oct 2009 10:03:17 EDT Re: Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150534 http://www.dslreports.com/forum/Re-Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150534 Thu, 08 Oct 2009 09:18:48 EDT Postfix or Sendmail and SMTP auth with ATT http://www.dslreports.com/forum/Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150259 I have Sendmail and Postfix using SMTP AUTH to an independent ISP for SMTP but would like to use what we have (since it's free) but can't auth to ATT. I have tried my main account login as well as some generated ones for testing and email will NOT go through.

It looks like I might have to 'verify' any email address I want to use someone via yahoo? - I have several domains and create aliases as needed and can't imagine someone has to do this for each and every address?

What am I missing here?

I would just like to send any email out my home server towards ATT and have them accept it provided I AUTH of course.

..I presume this must be possible?

-JD]]> http://www.dslreports.com/forum/Postfix-or-Sendmail-and-SMTP-auth-with-ATT-23150259 Thu, 08 Oct 2009 07:57:38 EDT