Wiki source code of Quality of contact information
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| author | version | line-number | content |
|---|---|---|---|
| 1 | (% class="lead" %)Data quality is represented as special codes assigned to contact details to indicate data status, reliability, and relevance. | ||
| 2 | |||
| 3 | Delivery problem codes that reflect the quality of contact data are shown in the table below. | ||
| 4 | |||
| 5 | (% class="table-bordered" style="width:734.222px" %) | ||
| 6 | (% class="info" %)|(% style="width:126px" %)**Code**|(% style="width:373px" %)**Name** | ||
| 7 | |(% style="width:126px" %)0|(% style="width:373px" %)No errors | ||
| 8 | |(% style="width:126px" %)1|(% style="width:373px" %)Temporarily unavailable for delivery | ||
| 9 | |(% style="width:126px" %)2|(% style="width:373px" %)DNS error | ||
| 10 | |(% style="width:126px" %)3|(% style="width:373px" %)Mailbox is full | ||
| 11 | |(% style="width:126px" %)4|(% style="width:373px" %)Message length exceeded | ||
| 12 | |(% style="width:126px" %)5|(% style="width:373px" %)Timeout | ||
| 13 | |(% style="width:126px" %)6|(% style="width:373px" %)Answering machine is on | ||
| 14 | |(% style="width:126px" %)30|(% style="width:373px" %)No address specified | ||
| 15 | |(% style="width:126px" %)31|(% style="width:373px" %)Format error | ||
| 16 | |(% style="width:126px" %)32|(% style="width:373px" %)Address does not exist | ||
| 17 | |(% style="width:126px" %)33|(% style="width:373px" %)Cannot be delivered | ||
| 18 | |(% style="width:126px" %)34|(% style="width:373px" %)Delivery attempts are exhausted | ||
| 19 | |(% style="width:126px" %)35|(% style="width:373px" %)Blocked by MTA | ||
| 20 | |(% style="width:126px" %)36|(% style="width:373px" %)Spam complaint | ||
| 21 | |(% style="width:126px" %)37|(% style="width:373px" %)Blocked by recipient | ||
| 22 | |(% style="width:126px" %)38|(% style="width:373px" %)Recipient does not accept attachments | ||
| 23 | |(% style="width:126px" %)39|(% style="width:373px" %)Non-existent domain | ||
| 24 | |(% style="width:126px" %)50|(% style="width:373px" %)Contact in blacklist | ||
| 25 | |||
| 26 | If the recipient's email address does not exist or is unavailable for any reason, the server returns a bounce message indicating the delivery failure. Depending on the cause, bounces are categorized as: | ||
| 27 | |||
| 28 | * **Soft bounces** — temporary delivery failures corresponding to delivery problem codes from 1 to 29. Messages are still sent to addresses with **soft bounces**. Each address has an internal counter tracking soft bounces. If there are 7 or more soft bounces within a month, the address receives code **34** (**Delivery attempts are exhausted**) and this address is permanently excluded from [[mailings>>doc:Main.Smart_Communications.SMC_Use.Mass_messaging.WebHome]]. Customer email addresses with soft bounces are marked in the System with an orange indicator [[image:attach:Orange.png||height="24" width="21"]]. | ||
| 29 | * **Hard bounces** — permanent delivery failures corresponding to codes from 30 and above. Addresses with **hard bounces** are permanently excluded from [[mailings>>doc:Main.Smart_Communications.SMC_Use.Mass_messaging.WebHome]]. Customer email addresses with hard bounces are marked with a red indicator [[image:attach:Red.png||height="22" width="21"]]. | ||
| 30 | |||
| 31 | (% class="box" %) | ||
| 32 | ((( | ||
| 33 | See also a special [[section>>doc:Main.Smart_Communications.SMC_Use.Mass_messaging.Quality_recommendations.WebHome]] with information on warming up IP addresses, getting off blacklists, and other recommendations for high-quality mailings. | ||
| 34 | ))) |