What is the best email sending speed to avoid spam folders and how does reputation affect it?

Email marketer from Email Marketing Forum MailKing responds that using a dedicated IP address and carefully warming it up is essential for controlling sender reputation and deliverability. Start with small volumes and gradually increase based on engagement metrics.

Email marketer from Email on Acid shares that sending reputation is a key factor in deliverability. They advise monitoring your reputation and adjusting sending practices accordingly, especially when scaling up your email campaigns.

Email marketer from Litmus shares that a strong sender reputation is essential for good email deliverability. Sender reputation impacts inbox placement, and slow and steady growth in sending volume helps cultivate a positive reputation.

Email marketer from Reddit User u/EmailExpert responds that gradually increasing your sending volume is crucial, especially when starting with a new domain or IP. Focus on consistent sending habits and keep an eye on bounce rates and spam complaints.

Email marketer from Mailjet explains that when warming up an IP address, start with low volumes and gradually increase them. They suggest monitoring your sending reputation closely and adjusting your sending speed based on feedback from ISPs.

Email marketer from Gmass shares information about email provider specific sending limits. They suggest considering these limits when planning sending volume.

Email marketer from SendGrid shares that warming up an IP address involves starting with a small number of emails and gradually increasing the volume over time. They stress the importance of monitoring engagement metrics to adjust sending speeds.

Expert from Spam Resource explains that IP warm-up involves gradually increasing sending volume and monitoring sender reputation. They advise starting with a small number of emails to engaged recipients and gradually increasing volume based on positive engagement.

Expert from Email Geeks states that removing list-unsubscribe headers as a hack to try and avoid an ISPs mail filters is a bad thing, and would correlate with other bad behavior. He adds that sending bulk mail that does its best to look like personal 1:1 email, to avoid spam filters and deceive the recipient … not so much.

Expert from Email Geeks explains that sending speed is important when building your reputation with an ISP. He adds that once you've built that reputation, the sending rate is dominated by how much recipients want to receive your mail. There’s no magic sweet spot and if recipients like your mail then a high volume is fine. If they don’t then no sending rate will help.

Expert from Email Geeks advises keeping an eye on deferrals (4xx responses, sometimes ESPs call them “soft bounces”). If they start to go up it’s a sign you’re pushing your luck at that ISP and you should back off a bit.

Expert from Email Geeks explains that the Gmail promotions folder is for promotional mail. If your mail looks promotional, and you have a good reputation, Gmail may choose to deliver it to the promotions inbox rather than the general inbox. Sending speed won’t affect that.

Expert from Email Geeks suggests that <https://help.returnpath.com/hc/en-us/articles/222437627> isn’t bad as a baseline approach, noting it's fairly conservative, which isn't a bad thing.

Expert from Word to the Wise responds that using new IPs needs a careful and deliberate warm-up process to build a positive reputation. Starting with lower volumes and only increasing sending as your positive response volumes are increased.

Documentation from Google Postmaster Tools explains that consistently sending email helps build a positive reputation. They advise gradually increasing sending volume to avoid being marked as spam.

Documentation from RFC explains that standards documents around email sending recommend careful management of sending volume, particularly when establishing a new sending domain, and careful attention to feedback loops to monitor deliverability.

Documentation from Microsoft explains that when sending bulk email, it’s important to follow best practices to avoid being flagged as spam. This includes gradually increasing sending volumes and monitoring sender reputation.