SaaS ideas your next customers are already looking for
100 SaaS startup ideas for the people who said they'd pay, from agency owners to dentists. Micro SaaS ideas, AI SaaS ideas and B2B SaaS ideas: find yours, build it, sign them up.
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Pain points in business: what people struggle with
Search the problems to solve, as people described them on Reddit and other platforms, in their own words.
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Multi-Domain Email Failures
Managing email across many domains and inboxes is fragmented, costly, and prone to deliverability and routing failures.
In their words
I'm looking for recommendations for a solid, secure, and reliable email service to host a custom domain.
I have a pile of domains and I still hesitate before I add another address because it's another seat.
do you set these up as separate professional Google Workspace mailboxes for each function, or is it just one mailbox with a bunch of aliases feeding a shared inbox?
i know outbound infra can get really expensive but i've tried to keep it as minimal and built things locally as much as i could
Ive been told my a few clients that my invoices have been going directly to "deleted" mail, and in one case directly to "Spam/Junk".
Only major host that's giving us headaches is MS - completely opaque, deliveries feel random.
people who submitted feedback inside one of my apps ended up getting replies from my personal Gmail
Ideally, I’d like each SaaS to have its own professional domain email, while still being able to send and receive as that address, without maintaining 10+ separate inboxes, logins and subscriptions.
we had a gap of about 11 days where our post-purchase flow was just... silent. No idea how much that cost us in repeat purchases.
seeing all restore requests on a single dashboard that is clickable to the Avanan tenant would be awesome
it's just constant low grade maintenance that never shows up when people quote SES pricing per thousand emails sent
Out of the box, Odoo mail (or a generic SMTP) means client invoices, quotes and portal emails regularly land in spam or get rejected.
our transactional sender hit its plan quota mid-campaign and we had to stand up a second provider as failover on short notice
multiple hour-plus downtimes in a week for e-mail is unacceptable
Founders, agencies, and developers
Where they talk
- r/sysadmin
- r/SaaS
- r/Emailmarketing
- r/Coldemailing
- r/salesforce
- r/AI_Agents
- r/Odoo
- r/SideProject
Tools they use today
- Gmail
- Google Workspace
- Exchange Online
- Microsoft 365
- cPanel
- Resend
- SendGrid
- Supabase
Why those fall short
- no policy or control over external domain messaging
- permissions and configs are painful to tie together; big providers block mail
- Carriers default to IA, omit reasons, and lists do not stick
- no built-in alias functionality in the email provider
- Reports go blind after 10am and 24-hour volume is wrong next morning
Map of ideas
Drawing the map…