Cybexsoft SMTP

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1.1.0

• New: routing rules in Cybexsoft SMTP Pro send some of your mail through a different mailer from the rest, chosen by From address, recipient domain, the plugin that sent it, or the subject. The email log shows which rule routed each message, and the test email on Tools can be sent «as if from» a plugin to check a rule. Without Pro the Settings tab shows the card locked.
• New: alert channels. Failure alerts can also post to Slack or to a webhook of your own (JSON with the event, site, incident, count, first error and a link), with a «Send test alert» button. The channel is told even when the alert email cannot get out, and a second message says when sending works again: «going out again after 14 minutes, 23 held messages delivered». Cybexsoft SMTP Pro adds any number of channels, Microsoft Teams and Discord, and a quiet period for each.
• New: WP-CLI commands. wp cybexsoft-smtp status shows the mailers, the queue, a sending hold and the last hour’s failures; test sends a test email; queue list|run|retry|flush, log list|export, diagnose <domain> (SPF, DKIM, DMARC), settings export|import (credentials only on request) and lists add|remove|list. With Cybexsoft SMTP Pro, also license status|activate|deactivate and report send. Every command exits non-zero when something is wrong, so it can run from a monitoring cron.
• New: sending limits. Each mailer can have a limit per minute, per hour and per day (Edit on the mailer), with ready-made figures for the SES sandbox, Gmail and shared hosting. A message past the limit waits in the queue and goes out when the limit allows, so nothing is refused or lost; held mail being retried keeps to the same limits. Needs «Hold failed mail and retry» on.
• New: a Cybexsoft SMTP widget on the WordPress dashboard, for administrators: whether mail is going out (or failing, held, or recovering, with a link), sent and failed for each of the last 7 days, and the number of messages waiting. Hide it from Screen Options like any other widget.
• New: multisite network settings. Network-activated, the plugin adds Network Admin → Settings → Cybexsoft SMTP: choose the mailer, its credentials, sending limits and (optionally) a From address once for every site, and decide whether sites may use their own settings instead. Each site keeps its own email log, held mail, block list and alerts. A Sites view shows which settings each site uses, what it sent in the last 7 days and what is waiting, and any site’s email log a page at a time. Credentials from wp-config.php still win on every site. Off until you switch it on, so network activation changes nothing.
• New: an optional short preview in the email log. Turn on «Keep a short preview» (Settings → Email controls) and each message keeps its first 300 characters as plain text, shown when you open it from the log. Off by default. Links lose their query strings, so password-reset and login keys are never stored; turning it off deletes the previews already kept, and the personal-data export and eraser include them. Cybexsoft SMTP Pro still archives the whole message.
• New: a failed message still waiting in the retry queue shows when it will be tried next under its status in the email log, with a button to try it again now.
• New: SparkPost mailer, for US and EU accounts. With Cybexsoft SMTP Pro its delivery reports (delivered, delayed, bounced, spam complaint) reach the email log like the other providers’.
• New: Mandrill (Mailchimp Transactional) and SMTP.com mailers in Cybexsoft SMTP Pro. Mandrill’s signed delivery reports are read too; SMTP.com’s are not yet, so its messages stay «Sent».
• New: a read-only REST API for agencies’ dashboards: cybexsoft-smtp/v1/stats and cybexsoft-smtp/v1/log, for administrators signing in with an application password.
• Fix: with SendGrid, Mailgun, Brevo or SMTP2GO as your mailer, a message the block list stopped or a sending hold kept back could still be sent. It now stays stopped.
• Fix: on multisite, deleting a site now deletes its email log, queue and list tables too, and a site created after network activation gets its tables straight away.
• Change: a message held for retry remembers which plugin sent it, so its log entry names the plugin instead of nothing.
• Developers: new filter cybex_smtp/mailer_for_message picks the mailer for one message; the email log has a route column (database update 1.2).
• Developers: new filters cybex_smtp/alerts/channels and cybex_smtp/alerts/payload, and the action cybex_smtp/alerts/resolved when an alerted incident is over. A webhook URL can come from the CYBEX_SMTP_ALERT_WEBHOOK_URL constant.
• Developers: new filters cybex_smtp/settings/export and cybex_smtp/settings/imported, and actions cybex_smtp/settings/import and cybex_smtp/cli/register, for add-ons to carry their settings in the settings file and add commands.
• Developers: new filters cybex_smtp/rate_limit/limits, cybex_smtp/rate_limit/presets and cybex_smtp/dashboard_widget/show, and the action cybex_smtp/rate_limit/deferred.
• Developers: new filter cybex_smtp/log/preview; the email log has a preview column (database update 1.3).
• Developers: new filters cybex_smtp/rest/stats and cybex_smtp/rest/log_entry; the SparkPost key can come from the CYBEX_SMTP_SPARKPOST_API_KEY constant.

1.0.7

• New: the email log has delivery statuses — Delivered, Deferred, Bounced and Spam complaint — for messages your provider reports on after accepting them. Reports are received by Cybexsoft SMTP Pro’s delivery events, from Amazon SES, SendGrid, Mailgun, Brevo, SMTP2GO, Postmark, Resend, MailerSend, Mailjet, Elastic Email and ZeptoMail; the log filters for these statuses appear once there is mail to show.
• Change: a message your provider accepted is now labelled «Sent» instead of «Delivered». Acceptance is all a send can confirm; «Delivered» is kept for mail the provider says reached the mailbox. The dashboard’s 30-day rate card now reads «Accepted».
• Change: messages sent through SendGrid, Mailgun and Brevo carry their log token in the provider’s own tag field, so the provider’s reports can be matched to the right log entry.
• Developers: two new hooks, cybex_smtp/dashboard/accepted_stat_after and the cybex_smtp/log/email_meta_after filter, for add-ons to show delivery information on the dashboard and in the message viewer.

1.0.6

• New: a «Rate ★★★★★» link under the plugin’s description on the Plugins screen, and one line at the foot of the plugin’s own pages linking to the WordPress.org review form. No pop-ups or admin notices.

1.0.5

• Fix: the dashboard’s deliverability score now counts what happened to your mail, not just your setup. A site whose DNS was correct but whose mailer refused most messages used to show 100/100 and «Looking good». Setup is now worth 60 points and the last 30 days of sending 40; failing mail, held mail or paused sending caps the score at 59, and the note under it names the most urgent problem first.
• Fix: messages held while sending was paused were delivered from the queue but never appeared in the email log, so their opens and clicks had nowhere to show. They are now logged when they go out.
• Fix: «Sender address rejected» (your own From address unknown to the mail server) was treated as the recipient’s fault: it was not retried and was left out of the deliverability score’s failure count.
• Change: the dashboard’s stat cards say «Emails · 30d» with the delivered/failed split, and show «No mail in the previous 30 days» instead of a +100% trend when there is nothing to compare with.
• Change: confirmations after a save or an action («Settings saved», «6 held messages were sent») now appear as a floating message in the corner that closes itself, instead of pushing the page down under the title. Hovering keeps it open. Without JavaScript they still show as normal notices.
• Fix: a DMARC policy of p=none no longer asks you to «publish a DMARC record» — it says the policy only monitors.

1.0.4

• New: the email log shows which plugin or theme sent each message (or «WordPress» for core mail such as password resets), under its subject and in the CSV export.
• New: each message records the id your mail provider gave it — SendGrid, Mailgun, Brevo and SMTP2GO from their API response, Amazon SES and most SMTP servers from the server’s reply. It is in the CSV export, and searching the log for it finds the message, which helps when a provider’s support desk quotes one.
• New: mail sent over SMTP or PHP mail() now goes out with a Message-ID the plugin can recognise, and a held message keeps the same one when it is retried. This is groundwork for bounce and complaint reports from your provider.
• The email log table gains three columns; the update is applied automatically.

1.0.3

• Fix: reloading the page after finishing the setup wizard no longer reopens it on «Test the connection».

1.0.2

• Maintenance release. No functional changes.

1.0.1

• Fix: the Plugins screen stopped with a fatal error (undefined constant KEEP_DATA_OPTION) when loading the deactivation dialog.

1.0.0

• Initial release.
• Connect a mailer: SMTP, Amazon SES, SendGrid, Mailgun, Brevo or SMTP2GO, with Postmark, Gmail, Outlook / Microsoft 365, Resend, MailerSend, Mailjet, Elastic Email and Zoho ZeptoMail in Pro. Add as many as you like and choose which one sends.
• Email log: every message with its subject, recipient, status and date, searchable, filterable and exportable to CSV.
• Held mail: a message whose send fails is kept and retried on a widening schedule instead of being lost, and sending pauses while a mailer is plainly broken rather than throwing every message at it.
• Failure alerts by email, at a threshold you set.
• Deliverability tab: SPF, DKIM and DMARC checks with the record that was found, what it means, and what to publish.
• Access lists: stop mail to an address or domain before it reaches your mailer.
• Credentials are encrypted at rest, or can be supplied from wp-config.php constants and kept out of the database entirely.
• Personal-data exporter and eraser for the email log, the mail queue and the debug log.
• Pro: a backup mailer that takes over a message the primary refused, and can be promoted to primary when the primary stops working; open and click tracking; archived message content with re-send; weekly reports; bounce handling; blocklist monitoring.