30 Messages

 • 

528 Points

Thursday, May 25th, 2023

Hi Mike

Hi Mike,

my emails are bouncing back for different reasons.  These are the two messages I receive. 

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  flittle8@hotmail.com
    host hotmail-com.olc.protection.outlook.com [104.47.11.97]
    SMTP error from remote mail server after pipelined sending data block:
    550 5.7.1 Unfortunately, messages from [66.96.186.9] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [DB5EUR02FT041.eop-EUR02.prod.protection.outlook.com 2023-05-10T20:11:06.904Z 08DB5165622BA6C2]

SMTP error from remote mail server after end of data:
    550-5.7.26 This mail is unauthenticated, which poses a security risk to the
    550-5.7.26 sender and Gmail users, and has been blocked. The sender must
    550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,
    550-5.7.26 DKIM checks did not pass and SPF check for [bckelp.com] did not pass

Thanks, Louise

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78 Messages

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906 Points

3 years ago

Hello,

 

Thanks for including the bounce back messages.

 

Upon investigation I found that the first email bounced because one of our outgoing server IP addresses was blacklisted. 

Sometimes, on shared hosting where many customers use the same email servers, they get detected as contributing to spam and unnecessarily get blacklisted by a few recipient email servers and RBLs. We do have a system in place that monitors our mailout server IPs for its reputation at RBLs that sends out reports periodically. Our Network Operations team rotates the blocked IPs automatically and that should resolve any blocks our servers may have.

Additionally, we have already informed our engineering team regarding this issue and our engineers are working towards the fix on increasing the reputation. I'm afraid we do not have an ETA on this. We appreciate your patience while we resolve this issue.

If you receive this type of bounce back message we reccommend waiting a few hours to try again.

 

The second error you received is due to misconfigured DNS settings. I found that your domain is currently pointed to cloudflare. You will need to access your Cloudflare account and change the TXT SPF record. The correct SPF record is  
v=spf1 ip4:66.96.128.0/18 -all

 

For reference here is a link to all email DNS settings needed for Homestead.

 

https://community.homestead.com/conversations/email-support/dns-records-for-homestead-email/5f2a9b2c58180958845d0015

 

Let us know if you have any further questions.

30 Messages

 • 

528 Points

@mike_j​ Thank you!