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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.

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SPF errors on a new domain name

I'm new to web hosting and configuring emails, and I was hoping I could get some help. I purchased a reseller account and I set up my first cPanel account on a domain that I have. I then created a few emails and started to use them but I noticed…
joepr
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Remove AS that's falsely associated with our IP from email block list

When I try to send email from our email server to hotmail or outlook.com I get 550 5.7.1 Unfortunately, messages from [216.x.x.x] weren't sent. Please contact your Internet service provider since part of their network is on our block list (AS3150).…
user3280964
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Postmaster Email Delivery Failure

Users have been reporting emails not coming through. There is a certain domain that is trying to email us and they get these failure notices; "This is a delivery failure notification message indicating that an email you addressed to email address…
RobAtkins
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Cannot send/receive mail from Gmail Business on webmail

Good day everyone, Recently we setup a WordPress site for a client. The clients' domain name was bought from GoDaddy and is hosted on a GoDaddy VPS. The issue I'm facing is that the webmail account associated with the site can send/receive emails to…
C Dsouza
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Internal user receiving thousands of NDR messages

We're using Exchange 2010. We have a user who is receiving thousands of NDR messages from our Exchange server as a result of a spammer using his address to spam a ton of Yahoo and Hotmail addresses. I've tried disabling NDR messages under Remote…
NaOH
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Postfix gives me "Sender address rejected: need fully-qualified address;" errors with what looks like strange addresses

I am receiving some error messages like this: Jan 28 17:20:47 halk postfix/smtpd[29413]: NOQUEUE: reject: RCPT from mail.m2osw.com[138.197.205.139]: 504 5.5.2 : Sender address rejected:…
Alexis Wilke
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Postfix: Recipient address rejected: Invalid HELO/EHLO; Must be a FQDN or an address literal

When sending emails, I receive undelivered mail with the following message "Recipient address rejected: Invalid HELO/EHLO; Must be a FQDN or an address literal, not 'xxx' 554 5.7.1" from certain webservers (where xxx is the name of my VPS). I…
Kraken
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Postfix bounces on user unknown alias (`"|exit 67"`) instead of rejecting mail

I have a small postfix server for a few domains of my own (matched with mydestination = pcre:/etc/postfix/mydestinations). I set some non-virtual aliases alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases In this file I defined…
Calimo
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Exim4, can't send email on my own domain that is in another server

I use exim4 as a send only email on my servers, The FQDM I have on this servers is ws1.example.com (ws1,ws2,ws3...) and the email I use for receiving emails is a different smtp server with the email address being info@example.com , when I send…
SteveL
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Hotmail blocks my SMTP server

Recently i discovered that hotmail has blocked my SMTP once again. The error code is Diagnostic-Code: smtp;550 SC-001 (COL004-MC5F28) I only send for my web based online 2d text game : http://www.monstermmorpg.com Activation emails Password…
Furkan Gözükara
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451 5.7.3 STARTTLS is required to send mail Exchange 2013 Hybrid

Certificate from GoDaddy is in place, I have removed esmtp inspection from our Cisco ASA, and hybrid mail is flowing from Office 365 to our on prem Exchange 2013 server. When trying to send mail to a mailbox migrated to Office365 I am receiving the…
Christopher Dallas
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Domain is being used for spam - what to do?

I recently started to receive postmaster and mailerdaemon mails about undelivered mail that have been sent from my corporate domain. It's default spam: attached files/invoices/etc. and it's not coming from my server (we're using a paid email service…
Patrick
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Setting FROM Email Address in FREE SmarterMail 15 for Delivery Failure Notices

I have Free SmarterMail 15 setup on a Windows Server to allow CDONTS and php mail to send emails from contact forms. When the to email address is invalid, a delivery failure notice is sent to the from email address. However SmarterMail doesn't send…
imvain2
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Bulk emails - what to do with "over quota / mailbox full" undeliverable emails?

We send out newsletters / bulk mail (double opt-in of course). We automatically delete hard bounces (mailbox unavailable, user unknown, host unknown...) right away from our mailing lists. But a lot of "Undelivered" mails are generated because the…
Perrschy
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Not able to send mail of Hotmail with your own postfix

I purchased DigitalOcean VPS in that installing cwp.admin open source panel. Also all configuration completed like postfix,rDNS,DKIM,DMARC,SPF,DNS Settings,etc... My problem is not able to send mail into Hotmail while same configuration to send mail…
Nimit Parekh
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