alice.it and tin.it are bouncing SES IP

Hello,

Different blacklists have different impacts on the successful delivery of a message. Major email providers including Gmail, Hotmail, AOL, and Yahoo seem to recognize a very small number of highly regarded blacklists, such as those offered by Spamhaus. In our experience, other blacklists tend to have a low impact, although some mail systems emphasize certain blacklists over others.

Our systems look for signs of abuse. If we detect sending patterns or other characteristics that could lead to an IP address being blacklisted, we send a notification to the sender. If the situation is severe, or if the sender doesn't fix the issue after we send the notification, we'll pause the sender's ability to send email until they resolve the issue. Enforcing our sending policies in this way helps reduce the chances that our IP addresses end up on blacklists.

To work towards getting this delisted you should first, confirm that the message was truly blocked because of an IP blacklist. If your email was rejected because the sending IP address was blacklisted, you'll receive a bounce notification that mentions the blacklist provider by name, as in the following example:

554 5.7.1 Service unavailable; Client host http://192.0.2.0 blocked using blacklistName; See: http://www.example.com/query/ip/192.0.2.0

If you received a bounce notification, but it didn't contain information similar to the message shown in the preceding example, then the email provider most likely rejected your message for a reason unrelated to blacklisting.

If you can confirm that an email provider is blocking your email because the sending IP address is on a blacklist, there are a few things you can do:

Contact the postmaster of the domain that rejected your message to request an exception from their spam filtering policy. When you contact the postmaster, provide the bounce codes you received, the headers of the email you're trying to send, a measurement of the impact the blacklist is having on the delivery of your email, and information about why you believe that your email is being improperly blocked. In some cases postmasters may place rules in place to block on a single RBL listing, which is not a standard process among the industry. In your discussion with the postmaster we recommend requesting that they do not block for just a single RBL listing.  


If the email provider doesn't respond, or is unwilling to change their policies, consider using a dedicated IP address. Dedicated IP addresses are addresses that only you can use. By implementing good sending practices, you can keep your engagement rates high, and your rates of bounces, complaints, and spamtrap hits low. Good sending practices can help ensure that your addresses don't end up on blacklists.  

Finally, if you do have example bounce messages for emails that were blocked to a blacklist please reply to this or via the message. We will attempt to de-list these IPs on a best effort and case-by-case basis, please be aware that not all blacklists are created equal and that delisting from some RBLs is not possible. If you have further questions or concerns please review our Blacklists FAQ: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/blacklists.html or reply to this for additional information.

Regards,
Gaurav

The problem is partially resolved

Tin.it continues to bounce SES IP ADDRESS because SES IP are blacklisted.

Typical bounce message:

{"notificationType":"Bounce","bounce":{"bounceType":"Transient","bounceSubType":"General","bouncedRecipients":[{"emailAddress":"XXXXXX@tin.it","action":"failed","status":"5.3.0","diagnosticCode":"smtp;
550 mail not accepted from blacklisted IP address ,"timestamp": xxxxxxxx........

Ip affected:

54.240.11.129
54.240.11.4
54.240.11.122
54.240.11.173
54.240.11.77
54.240.11.124
54.240.10.72
54.240.11.71
54.240.11.16
54.240.11.132

On tin.it web support page I found the blacklist used by tin:
spamhaus
symantec
psbl
senderscore

Edited by: accasoftware on Jun 3, 2019 2:07 AM

Edited by: accasoftware on Jun 3, 2019 2:22 AM

Edited by: accasoftware on Jun 3, 2019 2:24 AM

Hello,

I have checked all the IP addresses listed and none of them is on Spamhaus.

Quoting from our FAQ -

Q4. Can Amazon SES have its IP addresses removed from a blacklist?

We actively monitor blacklists that could impact delivery across the entire Amazon SES service, or that could impact the ability to send email to recipients who use major email providers, such as Gmail, Yahoo, AOL, and Hotmail. The blacklists offered by Spamhaus fall into this category. When one of our IP addresses appears on a list that meets either of these criteria, we take immediate action to have that address removed from the blacklist as quickly as possible.

We don't monitor blacklists that are unlikely to impact delivery across the entire Amazon SES service, or that don't have a measurable impact on delivery to major email providers. The blacklists offered by SORBS fall into this category. When one of our IP addresses appears on a blacklist in this category, we'll ask the provider to remove our IP addresses on a case-by-case basis. Different blacklist providers have different policies for removing blacklisted IP addresses, so we can't guarantee that an address can be removed within a certain period of time, or provide estimates of how long it will take to have an address removed.

Regards,
Gaurav @ AWS

I don't know why and if you did something but from 06/03/2019 around 08:30 AM (time near your post) I'm not receiving bounce from the IPs mentioned above. Now I'm receiving from the following IPs:

54.240.11.73
54.240.11.78
54.240.10.18
54.240.11.79
54.240.11.32
54.240.10.27
54.240.11.70
54.240.10.70
54.240.11.174
54.240.11.80
54.240.11.131
54.240.11.123
54.240.11.75
54.240.11.121

Thanks in advance if you can do something.

Hello,

The new list of IP's that you have provided are listed on SORBS and none of them is on Spamhaus.

Quoting from our FAQ -

Q4. Can Amazon SES have its IP addresses removed from a blacklist?

We actively monitor blacklists that could impact delivery across the entire Amazon SES service, or that could impact the ability to send email to recipients who use major email providers, such as Gmail, Yahoo, AOL, and Hotmail. The blacklists offered by Spamhaus fall into this category. When one of our IP addresses appears on a list that meets either of these criteria, we take immediate action to have that address removed from the blacklist as quickly as possible.

We don't monitor blacklists that are unlikely to impact delivery across the entire Amazon SES service, or that don't have a measurable impact on delivery to major email providers. The blacklists offered by SORBS fall into this category. When one of our IP addresses appears on a blacklist in this category, we'll ask the provider to remove our IP addresses on a case-by-case basis. Different blacklist providers have different policies for removing blacklisted IP addresses, so we can't guarantee that an address can be removed within a certain period of time, or provide estimates of how long it will take to have an address removed.

Regards,
Gaurav @ AWS

My SES quota:
Sending Quota: send 1305300 emails per 24 hour period
Quota Used: 17% as of 2019-06-10 11:50 UTC+2
Max Send Rate: 90 emails/second

Account status:
HEALTHY Bounce Rate 0.48%
HEALTHY Complaint Rate 0.02%

Problems with tin.it and ses ip blacklisted (mentioned above) impact for 2.71% of my communications.

How can I resolve them?
Is the only way possible the dedicated ip?

Edited by: accasoftware on Jun 10, 2019 3:02 AM