4.7.1 Temporarily deferred: try again later

The receiver is holding back your message for now, often because of how much or how fast you are sending, or because it does not know your sending address yet.

4.7.1 Temporarily deferred: try again later

Temporary: it may work if you retry

The receiver is holding back your message for now, often because of how much or how fast you are sending, or because it does not know your sending address yet.

Usual causes

A sudden increase in sending volume.
Poor reputation on the sending IP or domain.
Too many complaints or bounces from recent mail.

What to do

Let the retries run. Many messages get through later.
Cut the sending rate and avoid big spikes. Warm up a new domain over a few weeks.
Clean your list: remove bounced addresses and people who never open your mail.

Usually the fault of: sender.

Common questions.

What does 4.7.1 mean?

The receiver is holding back your message for now, often because of how much or how fast you are sending, or because it does not know your sending address yet.

Will retrying fix 4.7.1?

Often yes. It is a temporary failure, and mail systems retry for you. If it keeps failing for days, look at the causes listed above.

How do I fix 4.7.1?

Let the retries run. Many messages get through later. Cut the sending rate and avoid big spikes. Warm up a new domain over a few weeks. Clean your list: remove bounced addresses and people who never open your mail.

Other codes: 5.1.1 · 5.1.2 · 5.1.3 · 5.1.6 · 5.2.1 · 5.2.2 · 5.2.3 · 5.3.4 · Decode a whole bounce message

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