2.4.1.1.6. Outgoing mail
Limitations when selecting a mailbox:
- Mailbox of corporate mail can be selected by:
- Owner of the hosting account and corporate mail (simultaneously).
- User with delegated access to the hosting account and corporate mail (simultaneously).
- Mailbox of hosting account mail can be selected by:
- Hosting account owner.
- User with delegated access to the hosting account and its mail (required).
- If another user's corporate mailbox has already been selected for outgoing mail, it can only be replaced with another one. Only someone who has access to the hosting account and corporate mail (at the same time) can revert it back.
- Selecting a mailbox affects the counting of email sending limits per day.
This setting determines the mailbox that will be used by default in the "From" field when sending messages using the PHP mail function, if the sender is not explicitly specified by the script itself.
- Create a mailbox (if not created)
- Open the "Site settings" section.
- In the "Outgoing mail" field, select the mailbox created on the hosting and save the changes:

- Wait approximately 15 minutes for the changes to take effect.
When a site script that sends messages using the PHP mail function does not specify a sender mailbox (does not add the "From" header to the message) and no mailbox is selected in the "Outgoing mail" field, the address account mail will be used in the "From" field. This may cause delivery problems. In the mail from web server log, the hosting account name will appear in the "from" column.
When in the "Outgoing mail" fieldis selected real mailbox, it will be used in the "From" field and displayed in the web server mail log in the "from" column instead of the hosting account name.
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