Mail health

The Mail health screen shows your server's email reputation and gives you the limits that stop one hacked website or mailbox from getting the whole server blocklisted. It also shows who is sending this hour and lets you retry or delete mail that is waiting in the queue.

Where: Server Admin › Email › Mail health

Check the server's reputation

The Reputation of IP address card runs a list of checks each time you open the screen. Each row has a mark: green ✓ (fine), amber ! (worth a look) or red ✗ (a problem), a short explanation and, when something is wrong, what to do about it (after →).

Note: if the server IP is not set, the screen asks you to set it in Settings before the checks can run.

Tip: if the server is listed on a blocklist, find out why on that list's website, fix the cause (often a hacked site or mailbox sending spam), then ask the list to remove the IP address.

Set the sending limits

The limits count every recipient an account sends to, from mailboxes (SMTP) and from websites (PHP mail()). Mail over a limit waits and is retried later; the account owner and you are told once.

1. In Sending limits, type Emails per hour (0 = unlimited) and Emails per day (0 = unlimited).
2. Click Save.

These are the defaults for accounts whose package and account have no limit of their own. The card shows Active when the limit service runs, or Limit service not running in red. Sending limits per account gives one account its own limits and lists the limits reached in the last 24 hours, with Let it send again. See Sending limits.

See who is sending this hour

Sending this hour lists the 15 busiest accounts of the current hour:

Let it send again appears for an account that was held back or put on hold. To stop a customer account sending at once, click Pause sending and confirm. All its outgoing mail, from mailboxes and from websites, is paused. Receiving keeps working.

Use the spam guard

The spam guard watches for an account that suddenly sends far more email than usual. When that happens it puts all of the account's sending on hold at once, from mailboxes and from its websites, and tells you and the account owner. Receiving keeps working.

1. Tick Pause accounts that suddenly send far more than usual.
2. In Pause at, type the minimum number of recipients in an hour (50–100,000; the default is 300).
3. Click Save.

An account is paused when it reaches that number in an hour and five times its busiest hour of the last seven days.

Let a paused account send again

Paused accounts are listed under the spam guard with the time they were paused. When you have dealt with the cause, click Allow sending again.

Manage the mail queue

The Mail queue card shows email waiting to go out, with the number of messages (amber over 30, red over 200). Most of it is retried by itself for up to 5 days. A long queue from one sender usually means spam.

By sender appears when more than one sender has mail waiting, or one sender has more than five messages. It lists up to 10 senders with the account they belong to and how many messages are waiting.

The message table shows up to 100 messages: Waiting since, From (with the account), To, Why it waits (the other server's reply, or Being sent now / Waiting) and Size.

Warning: deleted messages cannot be recovered and are never delivered.

Related

• Mail delivery log
• Notifications
• Sending limits
• Packages