DMARC: start at none, read the reports, then tighten
DMARC tells receivers what to do when a message fails authentication. Publishing reject before you know who sends as you is how legitimate mail disappears.
A payment reminder email works when it is short, factual and easy to act on. Tone escalates with time; the facts stay the same in every one.
A payment reminder email is the most-used and least-thought-about message in a small business. Most are either too apologetic to prompt action or too aggressive for a customer who simply has not processed the invoice yet. The useful version is neither: short, factual, with everything the recipient needs to pay without replying to ask.
Assume good faith for a long time. The overwhelming majority of late invoices are late because of something mundane — the invoice went to the wrong inbox, a purchase order reference is missing, the approver is away, the payment run is on Thursday. Every early reminder should be written as though that is what happened, because it usually is.
Never send a reminder without checking it is actually unpaid, and that the invoice went to the right address in the first place. Chasing a customer who paid last week costs more goodwill than the invoice is worth, and it teaches them to ignore your reminders.
Escalate formality, not aggression. The early messages can be warm; the later ones should become shorter, more precise and more procedural — dates, amounts, references, next steps. Sarcasm, capital letters and moral language all reduce the chance of payment, because they hand the recipient an easier subject to react to than the invoice. Write every reminder as though it might be read aloud in a dispute, because occasionally it is.
In Ettex Mail, the messages you send repeatedly can live as reusable replies next to the inbox, so the six stages above become six saved texts you personalise in a line rather than rewrite each time. Scheduled send lets you write the batch on Friday and deliver on Monday morning, per-address signatures keep the branding right when reminders come from a billing mailbox on your own domain, and follow-ups stop a thread from being forgotten. The invoices themselves — numbers, amounts, due dates and statuses from draft through paid — sit in Ettex Invoices, and if you send a longer designed statement, Ettex Docs holds the master.
To be clear about the boundary: Ettex does not send payment reminders automatically. There is no dunning engine that watches due dates and mails on day one, day seven and day thirty, and no link between an invoice going overdue and an email being sent. The templates and the scheduling are there; deciding who gets reminded this week is a task on someone's calendar.
Chasing works better with the whole picture attached. A statement of account lists every invoice, credit and payment on a customer's ledger, which settles most "we already paid that" replies in one message.
Invoice number and date in the subject and body, amount, due date and days overdue, the invoice attached, payment details, one clear request with a date, and a named person to reply to.
A few days before the due date as a courtesy, then on the first day it becomes overdue. Waiting a fortnight makes payment less likely and the conversation harder.
Roughly before due, day one, day seven, day fourteen to twenty-one, day thirty, then a final notice. More frequent than that reads as noise; less frequent lets the invoice go cold.
Warm early, procedural later. Increase formality and precision rather than aggression — hostile wording gives the recipient something to react to other than the invoice.
Yes, from about a week overdue. A single call usually finds the real blockage — a missing purchase order, an absent approver — far faster than another email.
In many jurisdictions suppliers have a statutory right to interest and recovery costs on late commercial payments. Mention it only if it applies where you operate and you are prepared to apply it.
A payment reminder email is a piece of administration, not a confrontation. Attach the invoice, repeat the details, ask one question with a date, escalate formality on a schedule — and pick up the phone before the tone hardens.
DMARC tells receivers what to do when a message fails authentication. Publishing reject before you know who sends as you is how legitimate mail disappears.
A hard bounce is a permanent answer and must be suppressed immediately. Retrying it damages the reputation that gets the rest of your mail delivered.
Segmentation is only worth doing if the segments get treated differently. Most segmentation projects produce a chart, and every customer continues to receive exactly the same email.