What causes hard bounces when sending emails to Yopmail addresses and how to resolve them?

Marketer from Email Geeks states that they use Yopmail for QA work without any delivery issues. They also periodically scrub the addresses by marking them as opt-outs.

Email marketer from Litmus suggests using confirmed opt-in and segmenting lists to ensure engagement. This reduces the likelihood of sending emails to invalid or inactive addresses, which lowers bounce rates.

Marketer from Email Geeks believes the ESP automatically blocks temporary email addresses like Yopmail and overrides it when removed from the bounce list. They also mention Silverpop doing something similar with catchall emails.

Email marketer from Gmass mentions that high bounce rates negatively affect your sender reputation. They suggest validating email addresses with a third-party tool and using double opt-in procedures.

Email marketer from SuperOffice recommends validating email addresses using email validation services to improve email deliverability. The validation helps in identifying invalid, inactive, or disposable email addresses.

Email marketer from Moosend shares advice on cleaning your lists regularly, and also checking your sender reputation. Also suggests enabling confirmed opt-in to improve email deliverability.

Email marketer from Stack Overflow states that free, disposable email services like Yopmail are often used for spamming. To resolve hard bounces, they suggest contacting the provider and checking the reason for the bounce.

Email marketer from Reddit mentions services that keep lists of disposable email addresses. They suggest using these services to filter out disposable email addresses upon signup.

Email marketer from Sendinblue explains that cleaning your email list regularly is crucial to avoid bounces. Implementing practices like confirming subscriptions and removing old contacts can help.

Email marketer from Hubspot recommends cleaning your email lists, using double opt-in, and authenticating your emails as practices to reduce the email bounce rate.

Email marketer from MailerLite suggests implementing double opt-in, cleaning the email list, and warming up the IP address as the solutions to reduce bounces.

Email marketer from EmailOctopus explains that high bounce rates negatively affect sender reputation. To resolve, they recommend regularly cleaning email lists by removing invalid or inactive addresses, checking for typos, and implementing double opt-in.

Expert from Spam Resource explains that disposable email addresses are frequently used for spam and abuse. They recommend blocking these addresses at signup to prevent issues like bounces and protect sender reputation.

Expert from Word to the Wise explains that proper bounce processing is crucial for maintaining a good sender reputation. It suggests implementing a feedback loop to automatically identify and remove hard-bouncing addresses from your mailing list.

Expert from Email Geeks indicates the *550 Unrouteable sender address* bounce error possibly indicates an issue with the sender's config.

Expert from Email Geeks suggests declining Yopmail addresses at signup and asks about the raw bounce messages.

Documentation from SparkPost defines hard bounces as permanent delivery failures. It could be due to a non-existent mailbox or a blocked sender. Corrective actions include removing the email address from the mailing list to prevent future attempts.

Documentation from RFC Editor defines the Internet Message Format, including the syntax for email addresses. Ensures that addresses are correctly formatted, reducing the likelihood of bounces due to syntax errors.

Documentation from Mailjet explains that a hard bounce indicates a permanent reason an email cannot be delivered, such as a non-existent email address. Common causes include invalid domain names and unknown users.

Documentation from RFC Editor explains the format for delivery status notifications (DSNs), which include bounce messages. Provides a technical explanation of how bounces are classified and reported by mail servers.

Documentation from Amazon SES explains that hard bounces are permanent failures. To manage this, you should remove these addresses immediately and suppress future sends, as repeated attempts can harm your sender reputation.