SMTP-failure: [554] 5.7.1 <DATA>: Data command rejected: Unverifiable sender.

[Matt .]

Hi,

This could be as my helo=<groupware> and not my fqdn.

Nov 22 17:31:01 groupware-01 postfix/submission/smtpd[31814]:
55F0363906: reject: DATA from localhost[::1]: 554 5.7.1 <DATA>: Data
command rejected: Unverifiable sender.; from=<user at domain.tld>
to=<mailuser at gmail.com> proto=ESMTP helo=<groupware>

Can you verify this ?

Thanks

2014-11-22 17:13 GMT+01:00 Nikolai Maziashvili <cyclinggeorgian at outlook.com>:
> Error code 554... if i can remember correctly it has something to do with
> that particular sender being blocked... spam?
>
>> Date: Sat, 22 Nov 2014 17:03:16 +0100
>> Subject: SMTP-failure: [554] 5.7.1 <DATA>: Data command rejected:
>> Unverifiable sender.
>> From: yamakasi.014 at gmail.com
>> To: users at lists.kolab.org
>
>>
>> Hi guys,
>>
>> What can cause this issue when sending an email from Roundcube when I
>> use an associated domain ?
>>
>> I used the Multidomain howto but I still get this on sending an email.
>>
>> SMTP-failure: [554] 5.7.1 <DATA>: Data command rejected: Unverifiable
>> sender.
>>
>>
>> Any idea on this ?
>>
>> Cheers,
>>
>> Matt
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