Vip mobile Serbia (@vip.rs) was rebranded to A1 Srbija in 2019 as part of the A1 Telekom Austria Group’s one-brand strategy that also renamed Vipnet in Croatia and Vip Slovenia. The Vip brand is retired across the group; the underlying network, subscribers, and consumer email service now operate under the A1 identity. If you have a @vip.rs address and your mail client stopped connecting, or you cannot log in to Vip webmail anymore, the reason is the rebrand: the service moved to A1 infrastructure and Vip-branded endpoints were retired. This guide covers what happened and how to move to A1, Gmail, or Outlook.
Vip.rs addresses use A1 Srbija servers (2019 rebrand)
The Vip mobile Serbia mail service migrated to A1 Srbija infrastructure during the 2019 rebrand. Pre-existing @vip.rs mailboxes that were carried through are now hosted on A1’s mail servers. The settings below are what to configure in Thunderbird, Apple Mail, Outlook desktop, or any IMAP or POP3 client to reach a @vip.rs (or the newer @a1.rs) mailbox.
| Protocol | Server | Port | Encryption |
|---|---|---|---|
| IMAP (incoming) | mail.a1.rs | 993 | SSL/TLS |
| POP3 (incoming) | mail.a1.rs | 995 | SSL/TLS |
| SMTP (outgoing) | mail.a1.rs | 465 | SSL/TLS |
Username: full email address (@vip.rs if the alias was preserved through the migration, or the newer @a1.rs). Password: the A1 Srbija account password (the same one used for the A1 customer area at a1.rs). Confirm current hostnames and ports with A1 support since ISP mail settings are periodically updated.
Vip.rs is now A1 Srbija. The Vip brand was retired in Serbia during 2019 as A1 Telekom Austria Group unified its Central and Eastern European subsidiaries under a single A1 brand. @vip.rs mail infrastructure was migrated to A1 systems. Mail clients still configured against vip.rs hostnames will fail to connect because those hostnames no longer point to an active mail service.
What happened to Vip.rs
Vip mobile launched in Serbia in 2007 as a subsidiary of Mobilkom Austria (later A1 Telekom Austria Group), quickly growing into the country’s second-largest mobile operator behind Telekom Srbija. Alongside mobile, Vip offered consumer email under @vip.rs to subscribers.
In November 2017 the parent group Telekom Austria Group was rebranded to A1 Telekom Austria Group as part of a one-brand strategy across all Central and Eastern European markets. Subsidiaries were then converted on a rolling schedule: A1 Slovenia and A1 Bulgaria in 2018, A1 Hrvatska (formerly Vipnet Croatia) in October 2018, and Vip mobile Serbia was rebranded to A1 Srbija in 2019. The move consolidated brand equity under a single identity across the group’s seven-market footprint.
For consumer email, the practical effect was that the @vip.rs mail infrastructure was migrated to A1 servers as part of the transition. Users kept their addresses but the underlying servers and login endpoints changed. Any mail client configured for legacy vip.rs hostnames stopped connecting once the migration completed.
Option 1: Migrate to A1 Srbija (official successor)
If your Vip subscription continued into A1 Srbija, your @vip.rs address should have been carried across to A1 infrastructure. The A1 customer area is the sign-in point and the migration path for the mailbox settings.
1. Sign in to Moj A1
Go to a1.rs and sign in to the Moj A1 customer area with the credentials tied to your subscription. If sign-in fails, use the reset flow or contact A1 support for legacy Vip account recovery.
2. Confirm your email address in the customer area
Your address may still be @vip.rs (preserved through the migration) or may have been converted to an @a1.rs alias. Both are managed through the same Moj A1 interface.
3. Configure mail client with A1 settings
Use A1 Srbija’s current IMAP and SMTP settings for the mail client. Confirm current hostnames and ports with A1 support if a client refuses to connect, since ISP settings are updated over time.
Option 2: Migrate to Gmail (independent)
If you would rather have a provider-independent address that survives future ISP changes, Gmail is the standard destination. Create a Gmail account, enable forwarding on your Moj A1 mailbox if you still have access, and send a change-of-address notification to your contact list. Include the old @vip.rs so recipients can search and update.
Option 3: Migrate to Outlook.com
Outlook.com works the same as Gmail for the migration workflow. Best fit if you already use OneDrive, Office online, or a Microsoft 365 subscription. Both Gmail and Outlook.com support IMAP-based one-time imports from a working source mailbox.
Alternatives at a glance
Common issues after the Vip rebrand
Mail client returns connection refused for vip.rs servers
Legacy Vip mail hostnames were retired during the migration to A1. Reconfigure with A1 Srbija settings if your account was migrated, or move to Gmail or Outlook.
Cannot sign in to Vip webmail
The Vip-branded webmail interface was retired. Sign in through Moj A1 at a1.rs instead. Credentials should have carried over during the rebrand.
@vip.rs address stopped receiving mail
Either the mailbox was migrated to A1 infrastructure (sign in to Moj A1 to verify) or the underlying subscription lapsed and the mailbox was closed. A1 support can recover legacy Vip accounts in most cases.
Contacts still send to @vip.rs
Enable forwarding on the A1-hosted mailbox to catch these while contacts update their address books. Combine with a mass change-of-address notification from your new address.
Frequently asked questions
When did Vip mobile Serbia become A1?
The Serbian subsidiary was rebranded to A1 Srbija in 2019 as part of the A1 Telekom Austria Group’s one-brand strategy launched in November 2017. Croatia (A1 Hrvatska) was rebranded first in October 2018; Serbia followed the next year.
Can I still use my @vip.rs address?
If your account was migrated to A1 during the rebrand and the underlying subscription is still active, yes, but the mailbox is hosted on A1 infrastructure. Check Moj A1 at a1.rs to confirm the mailbox is present and note the current server hostnames.
What are the correct SMTP or IMAP settings now?
Use current A1 Srbija settings, not the legacy vip.rs values. Confirm current hostnames and ports with A1 support since ISP mail settings do get updated.
Is A1 Srbija email free?
Consumer email is bundled with an active A1 mobile or broadband subscription. If you cancel the underlying service, the mailbox eventually goes with it, which is why many former Vip customers prefer a provider-independent option like Gmail or Outlook.
Did Vip in other countries also rebrand to A1?
Yes. The A1 one-brand strategy covered all A1 Telekom Austria Group markets. Vipnet in Croatia became A1 Hrvatska in October 2018; Vip in Slovenia became A1 Slovenia; Vip Bulgaria became A1 Bulgaria in May 2018. The Serbian rebrand in 2019 completed the group-wide unification.
Where to go next
- Vip.hr to A1 Hrvatska migration guide
- MTS.rs email settings (Telekom Srbija)
- Gmail POP3, IMAP, and SMTP settings
- Outlook.com POP3, IMAP, and SMTP settings
Historical timeline of Vip mobile Serbia
- 2019: Vip mobile Serbia rebranded to A1 Srbija; consumer email migrated to A1 infrastructure. Vip brand retired.
- October 2018: Sister subsidiary Vipnet Croatia rebranded to A1 Hrvatska. Slovenia and Bulgaria rebranded earlier the same year.
- November 14, 2017: Parent group Telekom Austria Group renamed to A1 Telekom Austria Group. One-brand strategy launched for all Central and Eastern European subsidiaries.
- 2007: Vip mobile launched in Serbia as a subsidiary of Mobilkom Austria (later A1 Telekom Austria Group).
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About the Author
Alaa · LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. I’ve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
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