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Questions tagged [spam-marked]

This tag is about outgoing email being tagged as spam. Please read the canonical questions given in the full tag wiki before using it.

This tag is about outgoing email being tagged as spam. Please read these canonical questions:

How to send emails and avoid them being classified as spam?
Prevent mail being marked as spam

24 questions
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Why am I getting 500 error while trying to send emails to some domains?

Recently I've been seeing the following error while trying to send emails to some domains: Final-Recipient: name@example.com Original-Recipient: name@example.com Action: failed Status: 5.0.0 Remote-MTA: dns; mail.example.com Diagnostic-Code: smtp;…
belyid
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Problems with EMail deliverability

I am having the following problem: I am running a Debian server for about a year now, and I have never quite got emails to be delivered correctly. They keep getting caught in Googles Spam filters, Outlook doesn't even seem to bother and deliver them…
rocket_doge_
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3 answers

Why is Yahoo blocking our email address verifications and bouncing them back

I have a legitimate site www.angelescity.ph a Free Classifieds site, once someone posts an advert a verification email is sent.. Yahoo has been blocking them, not delivering and bouncing them back, they also are not answering our enquiries. They are…
Andrew
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1 answer

spamhaus.org is blocking our IP because we use multiple unrelated HELO values

spamhaus.org is blocking our IP because we send mail using multiples domain names from a single IP. The message is A device (computer, server, mobile phone, etc), or an app on a device that is using aaa.bbb.ccc.ddd is infected, badly misconfigured,…
Jean
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2 answers

send email from another server than FROM domain without being marked as spam

I want to send a mail from a website. The mail server from this domain is not publicly reachable, so I can't use that to send the mail. The webserver that hosts the website has another email server that I can/have to use. But I want the FROM to be…
Matthias
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1 answer

Send each email from a different subdomain?

There are clearly benefits of using a subdomain for sending email to protection domain reputation, but is this always true? What about the extreme case, where a spam domain sends every email from a distinct subdomain?
rosstex
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eMails sent from G-Suite go to Spam in Gmail clients. IP and Domain not blacklisted

We are running a platform with + 1 Mio users who sign-up with double opt-in to nurture them and allow them to be notified etc. All notifications by email are using our main domain (example.com) that we also use for Mailers with our CRM etc. On the…
Andreas von Estorff
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1 answer

SMTP relay server static public IP always being blocked

I have a SMTP relay server running on a hosted server under IIS, that uses a direct send configuration. I have migrated our old hosted exchange, to cloud exchange on office365 side and had to created a SMTP relay for our printers, scripts, etc with…
marafado88
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3 answers

Is there a real technical difference between Transactional e-mail and Marketing / Bulk email?

There are a lot of articles about differences between Transactional e-mail and Marketing e-mails (or bulk e-mails). I understand the business difference between these two, but is there any real technical difference between these two types of…
Ossi Mantylahti
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