Deliverability
How to choose a messaging channel by country
WhatsApp, Telegram, Viber, LINE, Zalo, RCS or SMS? How to pick a channel per country for messages customers expect, and measure it on your own base.
6 min read
Articles tagged “Deliverability”
7 articles.
Guides
E-mail verification vs account existence checks: what's the difference?
Mailbox validation says an address can receive mail. An account check says it is registered on a service. When to use each, and the privacy rules.
7 min read
Guides
HLR lookup vs MNP lookup vs number validation: what each one answers
Validation checks the digits, MNP finds the current network, HLR asks the network if the number is live. What each answers, costs and misses.
7 min read
Deliverability
How to clean a phone number list in bulk, step by step
A step-by-step way to clean a phone list with the MobileValidate jobs API: free estimate, dedupe, invalid rows, capped cost, CSV download and data purge.
7 min read
Deliverability
RCS capability check: what it tells senders before they send
What an RCS capability check tells you before sending, iPhone support, RCS vs SMS fallback, what RBM is, and a decision table with bulk API examples.
7 min read
Deliverability
SMS delivery receipts vs HLR lookup: before or after you send
A delivery receipt reports what happened after you sent an SMS. An HLR lookup asks the network before you send. What each can see, miss and cost.
7 min read
Deliverability
Why SMS messages aren't delivered: a cause tree with fixes
A cause tree for undelivered SMS: invalid numbers, unreachable phones, wrong line types, carrier filtering and handsets, with a fix for each.
7 min read
