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Questions tagged [email-bounces]

email bounces are messages that are delivered to the nominated postmaster account on an email server to indicate a problem delivering the mail to one or more recipients.

email bounces are messages that are delivered to the nominated postmaster account on an email server to indicate a problem delivering the mail to one or more recipients.

Bounces can result from unknown users, failed mail servers, or other network or configuration issues.

408 questions
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Why does reject_null_sender in iredmail rejects valid bounces?

The reject_null_sender plugin in iRedMail indicates its purpose as: Reject message submitted by sasl authenticated user but specifying null sender in 'From:' header (from=<> in Postfix log). But the code actually states a rejection when either the…
manu
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Sender IP in blacklist

When we send mails to AOL accounts, they are rejected and bounce back. After checking our IP on blacklists, there seems to be two lists on which our IP appears blacklisted. This comes as a surprise to us as we never spam and only mail our clients…
dr_rk
  • 135
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Email Bounces: Sender address rejected: Domain not found

I'm getting the error below when sending mail via smtp through google apps mail. Can anyone see why I get this error? As far as I can tell my domain exists! THIS IS A WARNING MESSAGE ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. Delivery to the…
totalitarian
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5 answers

SMTP Bounce Back

There is an SMTP bounce back problem when sending to clients: Subject: Mail delivery failed: returning message to sender This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or…
user125354
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Bounce Email Query

I wanted to check if there is a way to differentiate between bounced emails and auto-responses (out of office replies,etc..)? -Ashish
Ashish
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2 answers

Where do my email bounces go to?

I'm bit confused, I have a cron job that sends out 12 000 + emails every sunday night, now I'm not sure where the emails that are bounce get send to, will this always be the reply address specified in the email being send from? Centos is the Linux…
Elitmiar
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1 answer

What does "Maximum failsafe period has expired" mean?

On our mailing list, we have been getting the following message Maximum failsafe period has expired. What does that mean?
Mike Wills
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Is it okay to resend to hard bounced emails after X days. What is X?

If I see an email returned due to a hard bounce, after how many days is it acceptable to resend to that email address. It is possible for emails to be reactivated or for temporary outages, so it doesn't make sense to keep an email in my hard bounce…
V. Hsu
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resolve 5.1.0 Address rejected. Status: 5.3.0 issues

I send bulk mail to people that have joined our organization. The mail has unsubscribe links and if anyone click the 'mark as SPAM' button I don't send mail to that address again. I use DKIM/SPF and monitor my DMARC receipts (p=quarantine [pct=1]).…
Johnny Ruin
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1 answer

How to get whitelisted with Yahoo! email addresses

I have been running into issues with getting our company email server compliant to mass email Yahoo addresses. A number of emails range from 200 to 250 emails; however, about 40% of them at least get bounced back saying too many senders. Does anyone…
Frank Johnson
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e-mails of all the accounts were blocked due to spamming activity of a single account in shared hosting

I have around 25 websites hosted on shared hosting environment. Somebody, who has also hosted a website on the same hosting server started spamming. Due to this spamming activity the shared IP got black listed. Due the IP black listing and rated as…
Optimight
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"Message rejected by Google Groups"? I am not using any Google Groups

Some of my email messages (sent from mydomain.com) just fail, message is returned with the following explanation: Delivery to the following recipient failed permanently: info@somecompany.com Technical details of permanent failure: Message…
Danijel
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1 answer

What is causing bounceback “550 Blocked” from Mimecast?

Reading Mimecast's FAQ: https://community.mimecast.com/s/article/Mimecast-SMTP-5xx-Error-Codes-573763479 Error 550 with reason "Blocked" is not listed in their FAQ. I have called Mimecast and they are not returning my call. We have a client who is…
naps1saps
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