Why am I seeing Yahoo bounce error TSS06 and is it a Yahoo issue?

Email marketer from Litmus emphasizes the importance of providing clear unsubscribe options in every email. Making it easy for recipients to unsubscribe reduces the likelihood of them marking your emails as spam.

Email marketer from StackOverflow suggests that Yahoo may be using the TSS06 error to throttle senders that are exceeding sending limits or engaging in practices that resemble spamming. He recommends checking for compromised accounts that might be sending spam without your knowledge.

Email marketer from Quora suggests that list hygiene is crucial. Regularly remove inactive or invalid email addresses to reduce bounce rates and prevent being flagged as a spammer.

Email marketer from Email Marketing Forum advises checking the sender's authentication (SPF, DKIM, DMARC) to ensure they are properly configured. Incorrect or missing authentication can lead to deliverability issues and temporary blocks.

Email marketer from Email on Acid suggests testing email content using tools that simulate different spam filters to identify and address potential issues before sending. This proactive approach can minimize the risk of triggering false positives like TSS06.

Email marketer from Mailgun discusses implementing feedback loops with ISPs like Yahoo to receive notifications about spam complaints, allowing senders to quickly address and resolve issues that could be impacting deliverability.

Email marketer from Reddit shares that TSS06 errors are often triggered by sudden spikes in sending volume, especially if the sender's reputation isn't fully established with Yahoo. They recommend gradually increasing volume to avoid triggering the filter.

Email marketer from Postmark states that separating transactional and marketing email streams can improve deliverability by ensuring important transactional emails are not affected by potential spam issues in marketing campaigns.

Email marketer from Email Geeks shares experiencing a specific Yahoo bounce error (TSS06) and wonders if it's a Yahoo-side issue, especially since resolutions are consistent after contacting Yahoo Postmaster. Mentions some volume spikes with affected senders and notes the error code isn't listed on Yahoo's Sender Hub SMTP Error Codes page.

Expert from Word to the Wise advises that Yahoo's TSS06 error can stem from low engagement rates. They suggest focusing on providing valuable content that recipients want to interact with, thus boosting engagement metrics and reducing the likelihood of triggering the error.

Expert from Spam Resource emphasizes that a frequent cause of the TSS06 error is sending to a list with a high number of invalid or inactive email addresses. They recommend cleaning lists regularly and using double opt-in to ensure list quality.

Documentation from RFC 5321 details that 5.7.x errors generally indicate permanent delivery failure due to policy reasons on the recipient's side, aligning with Yahoo's use of TSS06 for policy-based deferrals.

Documentation from AWS SES states that including proper headers, such as `List-Unsubscribe` and `Content-Type`, in every email is crucial for signaling legitimacy and helping ISPs filter messages correctly.

Documentation from Microsoft SNDS explains that the Sender Network Data Services (SNDS) allows senders to monitor the health and reputation of their sending IPs on the Microsoft network, providing insights into potential issues affecting deliverability.

Documentation from Google Postmaster Tools highlights the importance of maintaining a positive sender reputation, as poor reputation can lead to email filtering and bounce backs. Suggests monitoring reputation using their tools.

Documentation from Spamhaus explains that blocks can be triggered if an IP is sending to spam traps or if there are complaints from recipients marking emails as spam. This contributes to a negative sender reputation, resulting in delivery issues.

Documentation from Yahoo Sender Hub explains that TSS06 is a temporary deferral error indicating that messages from a specific IP address are being temporarily blocked. It often suggests a possible spam-related issue or unusual sending patterns from that IP.