Troubleshooting Postfix Authentication to Relay
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Working on an issue that @Mike-Davis had but this time with a fresh server. Trying to authenticate to Intermedia's relay node. SASL and TSL are enables (in theory) and username / password mapping should be good, it is a tested account that worked with Outlook. Here is the current status of an email attempt:
Dec 12 17:14:21 vny-lnx-fle-postfix postfix/pickup[11265]: 37E555254: uid=0 from=<root> Dec 12 17:14:21 vny-lnx-fle-postfix postfix/cleanup[11319]: 37E555254: message-id=<[email protected]> Dec 12 17:14:21 vny-lnx-fle-postfix postfix/qmgr[11266]: 37E555254: from=<[email protected]>, size=561, nrcpt=1 (queue active) Dec 12 17:14:21 vny-lnx-fle-postfix postfix/smtp[11321]: 37E555254: to=<[email protected]>, relay=east.exch083.serverdata.net[199.193.202.47]:587, delay=0.11, delays=0.02/0.01/0.07/0.01, dsn=5.7.1, status=bounced (host east.exch083.serverdata.net[199.193.202.47] said: 530 5.7.1 Client was not authenticated (in reply to MAIL FROM command)) Dec 12 17:14:21 vny-lnx-fle-postfix postfix/cleanup[11319]: 53AD05259: message-id=<[email protected]> Dec 12 17:14:21 vny-lnx-fle-postfix postfix/qmgr[11266]: 53AD05259: from=<>, size=2647, nrcpt=1 (queue active) Dec 12 17:14:21 vny-lnx-fle-postfix postfix/bounce[11322]: 37E555254: sender non-delivery notification: 53AD05259 Dec 12 17:14:21 vny-lnx-fle-postfix postfix/qmgr[11266]: 37E555254: removed Dec 12 17:14:21 vny-lnx-fle-postfix postfix/local[11323]: 53AD05259: to=<[email protected]>, relay=local, delay=0.01, delays=0/0.01/0/0, dsn=2.0.0, status=sent (delivered to mailbox) Dec 12 17:14:21 vny-lnx-fle-postfix postfix/qmgr[11266]: 53AD05259: removed -
This is obviously where we are failing, but why is the question:
host east.exch083.serverdata.net said: 530 5.7.1 Client was not authenticated (in reply to MAIL FROM command) -
is this a valid from?
from=[email protected] -
@Dashrender said in Troubleshooting Postfix Authentication to Relay:
is this a valid from?
from=[email protected]They claim that valid from is not needed. Supposedly.
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@scottalanmiller said in Troubleshooting Postfix Authentication to Relay:
@Dashrender said in Troubleshooting Postfix Authentication to Relay:
is this a valid from?
from=[email protected]They claim that valid from is not needed. Supposedly.
I changed the sending domain, now we are getting unknown mailbox.
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If we try to send to a mailbox outside of the domain, we get authentication errors again.
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Odd thing with outlook is that you can email to users outside the domain, but a simple test email to yourself fails. so:
to: [email protected] from: [email protected] works, but
to: [email protected] from: [email protected] does not work
to: [email protected] AND [email protected] from: [email protected] - message gets sent outside, but not to me -
@Mike-Davis it's very strange all around.
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is there some sort of anti-spoofing settings with Intermedia? We use Mimecast here and Mimecast blocks any email from outside with a from address of "ourdomain.com" by default with their Anti-Spoofing policy.
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@jt1001001 said in Troubleshooting Postfix Authentication to Relay:
is there some sort of anti-spoofing settings with Intermedia?
That's probably what is going on. I was working with their support last night and they said they couldn't transfer me to a level 2 tech because I wasn't listed on the account. This tech also told me that they allow anonymous emails on port 25, so I knew I was working with the wrong guy.
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@Mike-Davis said in Troubleshooting Postfix Authentication to Relay:
@jt1001001 said in Troubleshooting Postfix Authentication to Relay:
is there some sort of anti-spoofing settings with Intermedia?
That's probably what is going on. I was working with their support last night and they said they couldn't transfer me to a level 2 tech because I wasn't listed on the account. This tech also told me that they allow anonymous emails on port 25, so I knew I was working with the wrong guy.
Yes, bottom line here is that Intermedia is incompetent. Which has been a question for a long time - why would anyone use Intermedia when Office 365 does the same stuff for lower cost but has Microsoft themselves backing it?
