SMTP Services - Error 554...
SMTP Services - Error 554 Invalid From Address
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- SMTP Services - Error 554 Invalid From Address
Topic: SMTP Services - Error 554 Invalid From Address
I have attempted to send emails using your smtp services but receive the smtp error 554 Invalid From Address.Although authenticated using my dynu account credentials, my "From" email is nclark@xxxxxxxx.com which is a valid email account not hosted on the dynu domain. If the "From" address is changed to a dynu.com hosted email account then the mail is sent properly.Is this some sort of protocol that you have put in place to prevent spam being sent from your domain?I have a demo software application that needs to send email using a known email account that is not visible to the users. It will use the authenticated dynu account smtp services but the "From" email address will not be a dynu email account.How can I get around this issue/restriction?
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'554 Invalid From Address' looks like an anti-spam protocol on the server end like you mentioned.
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I'm having the same issue. My testing so far has only been to gmail email addresses. It looks like gmail is rejecting my email as spam.I'm using hmailserver with a xxxxx.dynu.com subdomain for mx and relay.dynu.com as a relay server. I understand that I cannot add spf or dkim records to 3rd level subdomains at dynu.com, which would assist in whitelisting my emails. However, I was previously using a google apps account to relay mail and had no problems (other than I just want to get away from google). Mail was sent and received just fine. Is this a setup issue by virtue of missing spf and dkim records? Or is gmail refusing to accept mail from relay.dynu.com?
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I just discovered that emails from the domain I registered through the smtp relay service go through fine, but emails from other domains get blocked. I assume this is intentional.
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BrianPinneo wrote:I just discovered that emails from the domain I registered through the smtp relay service go through fine, but emails from other domains get blocked. I assume this is intentional.
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BrianPinneo wrote:I just discovered that emails from the domain I registered through the smtp relay service go through fine, but emails from other domains get blocked. I assume this is intentional.
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The issue for me with this, was the commandline arguments that Postfix was passing to sendmail -- included the original sender email address as part of those, which is what Dynu was rejecting.
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Author | Topic: SMTP Services - Error 554 Invalid From Address |
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Norman Clark Joined: 2017/5/10 |
SMTP Services - Error 554 Invalid From Address 2017年8月30日 15:03
I have attempted to send emails using your smtp services but receive the smtp error 554 Invalid From Address.Although authenticated using my dynu account credentials, my "From" email is nclark@xxxxxxxx.com which is a valid email account not hosted on the dynu domain. If the "From" address is changed to a dynu.com hosted email account then the mail is sent properly.Is this some sort of protocol that you have put in place to prevent spam being sent from your domain?I have a demo software application that needs to send email using a known email account that is not visible to the users. It will use the authenticated dynu account smtp services but the "From" email address will not be a dynu email account.How can I get around this issue/restriction?
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jdidi Joined: 2017/6/23 |
SMTP Services - Error 554 Invalid From Address 2017年8月31日 10:17
'554 Invalid From Address' looks like an anti-spam protocol on the server end like you mentioned.
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BrianPinneo Joined: 2017/3/3 |
SMTP Services - Error 554 Invalid From Address 2017年12月10日 17:14
I'm having the same issue. My testing so far has only been to gmail email addresses. It looks like gmail is rejecting my email as spam.I'm using hmailserver with a xxxxx.dynu.com subdomain for mx and relay.dynu.com as a relay server. I understand that I cannot add spf or dkim records to 3rd level subdomains at dynu.com, which would assist in whitelisting my emails. However, I was previously using a google apps account to relay mail and had no problems (other than I just want to get away from google). Mail was sent and received just fine. Is this a setup issue by virtue of missing spf and dkim records? Or is gmail refusing to accept mail from relay.dynu.com?
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BrianPinneo Joined: 2017/3/3 |
SMTP Services - Error 554 Invalid From Address 2017年12月10日 17:28
I just discovered that emails from the domain I registered through the smtp relay service go through fine, but emails from other domains get blocked. I assume this is intentional.
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timothytw Joined: 2002/5/2 |
SMTP Services - Error 554 Invalid From Address 2017年12月10日 20:51
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sbcn2012 Joined: 2018/6/28 |
SMTP Services - Error 554 Invalid From Address 2018年10月18日 21:06
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mlordmlord Joined: 2016/7/21 |
SMTP Services - Error 554 Invalid From Address 2023年12月4日 11:10
The issue for me with this, was the commandline arguments that Postfix was passing to sendmail -- included the original sender email address as part of those, which is what Dynu was rejecting.
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It is currently 2024年12月24日 9:19 US Mountain Standard Time
2024年12月24日 9:19